Question

4х – 2,55 = -2х + 1, 05;
8х – 5(2х + 1) = 2х + 4.

Answer 1

Ответ:

1.) 4х+2х=-2х+1,05

4х+2х=1,05+2,55

6х=3,6

х=0,6

2) 8х - 10х - 5 = 2х + 4

8х - 10х - 2х = 5 + 4

-4х = 9

х = -4/9

Answer 2

1) 4х + 2х = 2,55 + 1,05

6х = 3,6

х = 3,6 : 6 = 0,6

2) 8х - 10х - 5 = 2х + 4

8х - 10х - 2х = 5 + 4

-4х = 9

х = -4/9