1) 5x+12=37
5x=37-12
5x=25
x=25:5
x=5
2) 8-(x+2)=4
x+2=8-4
x+2=4
x=4-2
x=2
2х+3х+12=37
5х=25
х=5
8-(х+2)=4
8-х-2=4
-х=-2
х=2
1) 5x+12=37
5x=37-12
5x=25
x=25:5
x=5
2) 8-(x+2)=4
x+2=8-4
x+2=4
x=4-2
x=2
2х+3х+12=37
5х=25
х=5
8-(х+2)=4
8-х-2=4
-х=-2
х=2