Помогите пожалуйста срочно!!!!!
Упростите выражения:
84b+38b

90n+71n

-3,2d-8,3d

-3,4a-5,1a

32n-23m+2n+15n

32m+17n-2m-11m

34c+14m-m-6m

-3(8x+7)-7(-5x+3)

9(8m+9)-6(-3m+8)

Помогите ооооочень срочно дам 35 балов





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