Упростите выражения... 1)-(8m-2)+(5+m)-7 2)7(у+2в)-2(в-2у)

Question

Упростите выражения...

1)-(8m-2)+(5+m)-7
2)7(у+2в)-2(в-2у)

Answer 1

1) -(8m-2)+(5+m)-7=-8m+2+5+m-7=-7m+7-7=-7m
2) 7(y+2b)-2(b-2y)=7y+14b-2b+4y=11y+12b

Answer 2

1)-(8m-2)+(5+m)-7 = -8m+2+5+m-7 = -7m
2)7(y+2в)-2(в-2у) = 7у+14в-2в+4у = 12в+11у