Решите уравнени.
14-2у=2
11-6z=2-7z
10n-9=7n+12
-7x-40=3x
12m+9=11m+7

14-2y=2-2y=2-142y=14-2=12y=12/2=611-6z=2-7z7z-6z=2-11z=-910n-9=7n+1210n-7n=12+93n=21n=21/3=7n=7-7x-40=3x-10x=40x=40/(-10)=-4x=-412m+9=11m+712m-11m=7-9m=-2