X+7=5x+15
2y-8=3y-20
a-16=2a+8
3b-12=b+4
tolong dibantu caranya ya.. makasih
2y-8=3y-20
a-16=2a+8
3b-12=b+4
tolong dibantu caranya ya.. makasih
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x-5x=-7+15
-4x=8
x=8/-4
x=-2
2y-8=3y-20
2y-3y=8-20
-y=-12
y=12
a-16=2a+8
a-2a=16+8
-a=24
a=-24
3b-12=b+4
3b-b=12+4
2b=16
b=8