Question

8 + 3x + 12 = 15 - 4x - 3
4x + 3x = 15 - 3 - 8 - 12
7x = -8​

Answer 1

Пошаговое объяснение:

8+3x+12=15-4x-3

3x+4x=15-3-8-12

7x=-8

$x = - \frac{8}{7 } = -1 \frac{1}{7}$