5 / 3x = 2 / 1X + 7 to find the value of the unknown x

5 / 3x = 2 / 1X + 7 to find the value of the unknown x

5/3x=2/1x+7
5/3x-2/1x=7
10/1x=7
x=70

x+y=20-6 3x+y=30
x. What is y

x+y=20-6=14
x+y=14
x=14-y
3(14-y)+y=30
42-3y+y=30
42-2y=30
2y=12
y=6 x=8

"56,14-11
There are 95 employees who can produce 9 car bodies or 30 wheels per day. If the car body and wheels are matched [1:3], how many people should be crowded?
equation

Let the number of people who produce car body be X. from the meaning of the question, we can get 9x * 3 = 30 (95-x) and get x = 50, so there are 50 people who produce car body and 45 people who produce wheel

There are 56 workers in Dongfang wood factory, each of whom can process 10 desks a day

If x workers produce desks, (56-x) workers produce chairs
If the number of table workers is x, then the number of stool workers is (56-x)
2×10X=15×(56-X)
20X=840-15X
35X=840
X=24

There are 56 workers in blue sky wood factory
Each worker can process 10 desks or 15 benches per day on average. In order to supply the market, one desk and two benches must be matched into a set for delivery. How to arrange the number of people to process desks and benches, so as not to cause waste, but also to meet the supply requirements as much as possible? (don't use the equation, talk about it in detail)

When three people produce desks, they can produce: 10 × 3 = 30 desks
When 4 people produce the square stool, it can produce: 15 × 4 = 60 pieces
At this time, one desk and two stools can be matched into a set for delivery
So 4 + 3 = 7 in each group
There were 56 △ 7 = 8 groups
So: there are 3 × 8 desks for 24 people
There are 4 × 8 square benches for 32 people

There are 56 workers in Dongfang Woodenware Factory, each of whom can process 10 desks or 15 chairs per day on average. The factory has received a batch of tasks for processing desks and chairs, asking for one
A set of desks and two chairs. To finish the task in the shortest time, how to arrange the number of workers to process desks and chairs? The quantity relation, solution and equation can't be less

There are x people who make tables
10x×2=(56-x)×15;
20x=840-15x;
35x=840;
x=24;
So 24 people make tables, 56-24 = 32 people make chairs
I'm very glad to answer your questions. Skyhunter 002 will answer your questions
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Dongfang wood factory has 56 workers, each of whom can process 10 desks or 15 chairs per day on average. The factory has received a batch of tasks for processing desks and chairs. One desk and two chairs are required to form a set. It is required that the task be completed in the shortest time, and how to arrange the number of workers for desks and chairs

If x workers produce desks, (56-x) workers produce chairs
If the number of table workers is x, then the number of stool workers is (56-x)
2×10X=15×(56-X)
20X=840-15X
35X=840
X=24

There are 56 workers in Dongfang Woodenware Factory, each of whom can process 10 desks or 15 chairs per day. The factory has received a batch of tasks to process desks and chairs, requiring one desk
How to arrange the number of workers who process desks and chairs to complete the task in the shortest time?
The equation on the Internet is as follows:
Solution: suppose x workers produce desks, then (56-x) workers produce chairs
2×10X=15×(56-X)
20x = 840-15x why is 840-15x in this step? How can we get it?
35X=840
X=24

According to the law of multiplicative distribution, 15 × (56-x) = 15 × 56-15 × X

There are a group of chickens and rabbits. The total number of legs is more than twice the total number of heads. How many rabbits are there?

If they are all chickens, the total number of legs = twice the total number of heads
If one rabbit is added and one chicken is reduced, the total number of legs = 2 times of the total number of heads + 2
Because, the total number of legs than the total number of heads 2 times more than 16
16÷2＝8
So, there are eight rabbits

Chicken and rabbit in the same cage problem: there are a group of chickens and rabbits, the total number of legs is 2 times more than the total number of heads, 18, to find the number of rabbits

Let the number of rabbits be x and the number of chickens be y
(4x+2y)-2(x+y)=18
4x+2y-2x-2y=18
2x=18
x=9
That is: the number of rabbits is 9