Question

Решить уровнения:1-3(x-1)=2-7(1-x)

Answer 1

1-3x+3=2-7+7x

-3x-7x=2-7-1-3

-10x=-9

x=0,9

Answer 2

1-3(x-1)=2-7(1-x)

1-3x + 3 = 2 - 7 + 7x

4 - 3x = -5 + 7x

-3x - 7x = -5 -4

- 10x = -9

$x=frac{9}{10}$