Question

7x+1= 8 x +9; 5). 3. (4-у)=6-(8ут 3) 2) 4,4 - 8 x = 4,9-10x; 6) -4(3-5x) = 18x-7 1 3) 3 6=220 7) 2 (7x- 12) = (5 + ²x).4 4) 9-7у n 3 25-3у)​

Answer 1

1) 7х - 8х = 9 - 1

-х = 8

х = -8

2) -8х + 10х = 4.9 - 4.7

2х = 0.2

х = 0.1

3) 3х - 2х = -1/3 + 6

х = 17/3 = 5 2/3

4) -7у + 3у = 25 -9

-4у = 16

у = -4

5) 12 - 3у = 6 - 8у - 3

12 - 3у = 3 - 8у

-3у + 8у = 3 - 12

5у = -9

у = -9/5 = - 1.8

6) -4 (3 - 5х) = 18х - 7

-12 + 20х = 18х - 7

20х - 18х = -7 + 12

2х = 5

х = 5/2 = 2.5

7) 14х - 24 = 20 + 3х

14х - 3х = 20 + 24

11х = 44

х = 4