Question

Помогитеее пжпжпжжп

4×+7=11
7+5×=12
15+(3×+2×)=25

Answer 1

Помогитеее пжпжпжжп

4х+7=11
4х = 11-7
4х = 4
х=1
——-
7+5х=12
5х=12-7
5х = 5
х = 1
——-
15+(3х+2х)=25
15+5х=25
5х = 25-15
5х = 10
х = 2