12-4(3-2х)=3(5+х) прошу, ребята, срочно надо
12-12+8х=15+3х
8х=15+3х
8х-3х=15
5х=15
х=15/5
х=3
12 - 4(3 - 2x) = 3(5 + x)
12 - 12 + 8x = 15 + 3x
8x - 3x = 15 - 12 + 12
5x = 15
x = 15 : 5
x = 3