Помогите
1. 10+3в-(8в+2)-5+в
При в= -10
2. Упростите выражение
-(12х+3у)+6(2х-у)
1. 10+3в-(8в+2)-5+в
При в= -10
2. Упростите выражение
-(12х+3у)+6(2х-у)
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Answers & Comments
10-30 -(-80+2)-5-10
10-30+80-2-5-10
43
2)-(12х +3у)+6 (2х-у)
-12х-3у+12х-6у
-9у
2) -(12x+3y)+12x-6y=-12x-3y+12x-6y=-9y