-11 (2x-3y)+12(3x+2y)=?9-(-8a+7b)-13 (-3a+4b)=?-0,7 (-5x+4b)+12(0,2b-0,5x)=?

Question

-11 (2x-3y)+12(3x+2y)=?
9-(-8a+7b)-13 (-3a+4b)=?
-0,7 (-5x+4b)+12(0,2b-0,5x)=?

Answer 1

1) = -22x+33y+36x+24y = 14x+57y

2) = 72a+63b+39a-52b = 111a-11b

3)  = 3,5x-2,8b+2,4b-6x = -2,5x-0,4b

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