Question

Решите уравнение: 18*х= 840-720

Answer 1

18х = 840 - 720
18х = 120
х =120 : 18
х = 6 $\frac{2}{3}$

Answer 2

18х=120
х= 120/18=20/3

Answer 3

I can help you solve linear equations. A linear equation is an equation with one variable to the first power and one or more constants. To solve a linear equation, we need to isolate the variable by performing inverse operations on both sides of the equation until the variable is left by itself.

In your equation, 18x = 840 - 720, the variable is x and the constants are 18, 840, and 720. To isolate x, we can follow these steps:

- Subtract 720 from both sides of the equation: 18x = 840 - 720 - 720 - Simplify the right side of the equation: 18x = 120 - Divide both sides of the equation by 18: 18x / 18 = 120 / 18 - Simplify the left side of the equation: x = 120 / 18 - Reduce the fraction on the right side of the equation: x = 20 / 3

The solution is x = 20 / 3. You can check this by plugging it back into the original equation and seeing if both sides are equal.

If you want to learn more about linear equations, you can watch some videos , , or , or read some articles , , or . You can also try some practice problems . I hope this helps.how to solve linear equations