Question

решите уравнения 3(5-2х)=5х+12
3-4(5+3х)=2х-3

Answer 1

1) 3(5-2x) = 5x + 12
15 - 6x = 5x + 12
-11x = -3
x = $frac{3}{11}$
Ответ:$frac{3}{11}$
2)  3-4(5+3x) = 2x-3
3-20-12x = 2x-3
-12x-2x = -3 +20-3
-14x = 14
x = -1
Ответ: -1

Answer 2

вот, держи!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!