А)6х-20=8х-12 б)12-2(5х+3)=4(х-2)

Question

А)6х-20=8х-12 б)12-2(5х+3)=4(х-2)

Answer 1

1) 6x-8x=-12+20
    -2x=8
x=-4
2)
12-10x-6=4x-8
-10x-4x=-8-12+6
-14x=-14
x=1

Answer 2

А)6х-8х=-12+20
-2х=8
х=-4
б)12-10х-6=4х-8
-10х-4х=-8-12+6
-14х=-14
х=1