Ответ:
1. 5х+12=8х+30
5х-8х=30-12
-3х=18
х=-6
2. -6(х+2)=4-17
-6х-12=4х-17
-6х-4х=-17+12
-10х=-5
2х=1
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Ответ:
1. 5х+12=8х+30
5х-8х=30-12
-3х=18
х=-6
2. -6(х+2)=4-17
-6х-12=4х-17
-6х-4х=-17+12
-10х=-5
2х=1
5x-8x=30-12
-3x=18 |:-1
3x=-18
x=-6
2)-6(x+2)=4x-17
-6x-12=4x-17
-6x-4x=-17+12
-10x=-5|:-1
10x=5
x=5/10
x= 1/2