Question

1) 12х-3=6х+3
2) 25х+18=13х+6

Answer 1

Пошаговое объяснение:

$12x - 3 = 6x + 3 \\ 12x - 6x = 3 + 3 \\ 6x = 6 \\ x = 1$

$25x + 18 = 13x + 6 \\ 25x - 13x = 6 - 18 \\ 12x = - 12 \\ x = - 1$