Question

Решите уравнения. 1) 7х-2=15х - 60 . 2) 32,7 - 18,3у=32,42+16,7у . 3)39,24+11,52х =14,19-13,48х.

Answer 1

1)7х-15х=2-60
-8х=-58
х=7,25
2)-18,3у-16,7у=32,42-32,7
-35у=-0,28
у=0,008
3)11,52х+13,48х=14,19-39,24
25х=-25,05
х=-1,002

Answer 2

1. 7x - 2 = 15x - 60

To solve for x, we want to isolate the variable on one side of the equation. We can start by moving all the x terms to one side and all the constant terms to the other side:

7x - 15x = -60 + 2

Simplifying, we get:

-8x = -58

To solve for x, we divide both sides by -8:

x = 7.25

Therefore, the solution is x = 7.25.

2. 32.7 - 18.3y = 32.42 + 16.7y

We can start by moving all the y terms to one side and all the constant terms to the other side:

32.7 - 32.42 = 18.3y + 16.7y

0.28 = 35y

To solve for y, we divide both sides by 35:

y = 0.008

Therefore, the solution is y = 0.008.

3. 39.24 + 11.52x = 14.19 - 13.48x

We can start by moving all the x terms to one side and all the constant terms to the other side:

39.24 - 14.19 = -11.52x - 13.48x

25.05 = -25x

To solve for x, we divide both sides by -25:

x = -1.002

Therefore, the solution is x = -1.002.