How to solve the equation 3x + 18 = 2x + 104-12

3x-2x=104-12-18
x=74

How to solve the equation 22-3x = 0.6x + 4?

22-3X=0.6X+4
-3X-0.6X=4-22
-3.6X=-18
X=-18/-3.6
X=5

How to solve 3x = 36 equation
There are also 40-x = 28

Divide both sides of the equation by 3, x = 12
The second equation shifts x to the right of the equation, 28 to the left, and all the shifts are signed. X = 68

Simple algorithm; process, 3 / 2-15 / 4 times 1 / 10 minus 5 / 8, thank you,

3/2-15/4*1/10-5/8=60/40-15/40-25/40=(60-15-25)/40=20/40=1/2

After Xiaogang gave his brother four exercise books, he had two more exercise books than his brother. It turned out that his brother was less than Xiaogang______ There are two exercise books

4 × 2 + 2, = 8 + 2, = 10 (pieces), a: my younger brother has 10 exercise books less than Xiao Gang, so the answer is: 10

English translation
It's a combination of seven words

I hope (wish) you have a great (good, fantastic, etc.) trip (journey)

In order to make people feel the impact of discarding plastic bags on the environment, six students from the environmental protection group of a class recorded the number of plastic bags lost in their home in a week, and the results are as follows (unit: piece): 33, 25, 28, 26, 25, 31. If there are 45 students in the class, it is estimated that the total number of plastic bags discarded in each family of the class this week is ()
A. 900 B. 1080 C. 1260 D. 1800

According to the known sampling data, the average number is 33 + 25 + 28 + 26 + 25 + 316 = 28. According to this, it can be estimated that the total number of plastic bags discarded by each family of the whole class this week is about 28 × 45 = l260

There are two cuboid containers. Container a is 40 cm long, 30 cm wide and 24 cm deep. Container B is 30 cm long and 20 cm wide
If part of the water in container a is poured to container B so that the water level in the two containers is the same, how many centimeters is the water depth at this time?

(40 * 30 * 24) / [(40 * 30 + 30 * 20)] = 16cm

- 0.85 times 8 / 17 - 18 times 2 / 7 + (18 divided by 7 / 9-9 / 17) times 0.85

85 × 17 / 8-18 × 7 / 2 + (18 ／ 9 / 7-17 / 9 × 0. 85) = (- 20 / 17) × 17 / 8-18 × 7 / 2 + (18 × 7 / 9-17 / 9 × 20 / 17) = (- 20 / 17) × 17 / 8-17 / 9 × 20 / 17-18 × 7 / 2 + 18 × 7 / 9 = (

What's the situation? What's the formula
There are many examples in my book
such as
Find the linear equation passing through point P and perpendicular to vector n
The equation of a line passing through point P and parallel to line L
Find the linear equation which passes through the point (3, - 4) and is parallel to the line L: 3x + 7Y + 9 = 0
He uses a little French for these examples
Find the linear equation which passes through the point (- 2,5) and is perpendicular to the line L: 4x-3y + 9 = 0
In this example, he uses the pointwise form
How can I tell which topic to use

In fact, this problem is very simple. There are many ways to determine a linear equation in the book, and there are many names. The key is to remember the names of these equations. Some of them are inclined, intercept, oblique, two-point, point and direction. As for the general formula, it's just for fun. In reality, it won't be used

How to solve the equation 3x + 18 = 2x + 104-12