Решите уравнения
1/3x=1/2
7+2x=0
5-4x=x-15
x+2(3x-2)=10

1/3х=1/21/2:1/3 =1,5----------------------------------------------------7+2х=02х=-7  х=-7 ÷ (-2)   х=7÷2 х=2,5----------------------------------------------------5-4х=х-15-4х-х=-15-5  -5х=-20 5х=20 х=4----------------------------------------------------х+2(3х-2)=10х+6х-4=10    7х=14 х=2