а)10-7x=x+26
-7x-x=26-10
-8x=16
x=-2
2.а 10-7х=х+26
10-26-7х-х=0
-16-8х=0
-8х=16
х=16/-8
х=-2
2-3*(2x+5)=(3x-15)-6
2-6х-15=3х-21
-6х-3х=-21-2+16
-9х=-7
х=7/9
а)10-7x=x+26
-7x-x=26-10
-8x=16
x=-2
2.а 10-7х=х+26
10-26-7х-х=0
-16-8х=0
-8х=16
х=16/-8
х=-2
2-3*(2x+5)=(3x-15)-6
2-6х-15=3х-21
-6х-3х=-21-2+16
-9х=-7
х=7/9