The basic process of solving practical problems with linear equation of one variable generally includes setting, listing and checking, that is (), (), (), (), (), () It's the basis of a series of equations

The basic process of solving practical problems with linear equation of one variable generally includes setting, listing and checking, that is (), (), (), (), (), () It's the basis of a series of equations

The basic process of solving practical problems with one variable linear equation generally includes finding, setting, listing, solving, checking, answering and other steps, that is, (finding the equivalent relationship), (setting the unknown), (listing the equation), (solving the equation), (testing), (answering). (finding the equivalent relationship) is the basis of the listing process

The general steps of solving practical problems with linear equation of one variable are as follows: 1;
The general steps of solving practical problems by using the equation of one variable and one degree are as follows: review, ---, ---, ---, ---, answer

1. Review
2. Find (find quantity relation)
3. Let (let unknowns)
4. Column (equation)
5. To solve (an equation)
6. A

How many days does it take for Party B to complete a project alone in 18 days and for Party A to cooperate in 6 days?
It's better to be more detailed about the formula or equation
X better not be the denominator

All the pupils can count
Set X as the number of days for Party B to complete alone
be
（1/18+1/x）*6=1
Solution
X=9

It takes 4 days for Party A to do a job alone, and 6 days for Party B to do it alone. Now Party B does it alone for one day, and then Party A and Party B cooperate to complete it. How many days have Party B done it altogether

A job, let its total amount be 1. Party A completes it in 4 days, 1 / 4 every day, and Party B completes it in 6 days, 1 / 6 every day. "Now Party B does it alone for one day, and then Party A and Party B cooperate to complete it." that is to say, the total amount of a job is 1, Party B has done 1 / 6, and then Party A and Party B cooperate. That is, the total amount is 1-1 / 6 = 5 / 6

It takes 4 days for Party A to do a job alone, and 6 days for Party B to do it alone. Now, how many days does it take for Party A and Party B to cooperate?

1 / (1 / 4 + 1 / 6) = 2.4 (days)
"1" is the total amount of work (1 / 4 + 1 / 6) is the work efficiency and 2.4 days is the working time

For a project, team a and team B can work together for 6 days, and team a can work alone for 18 days. Now team B can work alone. How many days can we finish the project?
I still don't understand

This can be solved by equation
If a finishes in 18 days, he will do 1 / 18 every day, 6 / 18 in six days, that is 1 / 3, and the remaining 2 / 3 will be finished by B, and 6 days is 6 / 9, so B will do 9 days alone
It should be right

1. A project is completed by Party A and Party B in 6 days. Party A will do it alone in 18 days. How many days will Party B do it alone?
Urgent! 1

Setting: the workload is 1
Then the efficiency of a is 1 / 18, and if B completes it in X days, then B completes 1 / X every day
If Party A and Party B cooperate for 6 days, then:
1/(1/18+1/x)=6
x=9
B alone to do 9 days to complete

It takes 20 days for Party A and Party B to complete a work. If Party A does it in 12 days, then Party B can do it in 36 days
How many days will it take to finish it

B efficiency = (1-12 / 20) / (36-12) = 1 / 60
A efficiency = 1 / 20-1 / 60 = 1 / 30
B = (1-18 / 60) △ 1 / 30 = 21 days

For a project, the cooperation between Party A and Party B takes 20 days to complete. If Party A works alone for 12 days, then Party B works alone for 36 days. Now party a works alone for 18 days,
How many days will it take for B to finish it alone

Do you need an equation? The arithmetic is simpler
1. The cooperation between Party A and Party B should be completed in 20 days
2. If Party A does it alone for 12 days, then Party B can do it alone for 36 days
It is equivalent to 12 days after Party A and Party B cooperate, and Party B does it for another 24 days,
That is to say, Party B completed 20-12 = 8 days of work in 24 days. The work efficiency of Party B is 1 / 3 of that of the cooperation
Now, after 18 days of working alone, Party A completes 18 days first, and there are two days left for cooperation. Party B needs 2 × 3 = 6 days
Therefore, Party B needs 18 + 6 = 24 days to complete

For a project, team a and team B work together and complete it in 36 days; Team B and team C work together and complete it in 45 days; team a and team C work together and complete it in 60 days______ It will be finished in three days

1 △ [(136 + 160-145) △ 2], = 1 △ [145 × 12], = 1 △ 190, = 90 (days); answer: team a does it alone, it takes 90 days to complete. So the answer is: 90