Question

1) 4(x-7)=5x
2) 3(x+2)=9
3) -(6x-5)=4x-9

Answer 1

Ответ:

1)

$4(x - 7) = 5x \\ 4x - 28 = 5x \\ 4x - 5x = 28 \\ - x = 28 \\ x = - 28$

2)

$3(x + 2) = 9 \\ x + 2 = 3 \\ x = 3 - 2 \\ x = 1$

3)

$- (6x - 5) = 4x - 9 \\ - 6x + 5 = 4x - 9 \\ - 6x - 4x = - 9 - 5 \\ - 10x = - 14 \\ x = \frac{7}{5}$

Пошаговое объяснение:

правильно проверено