Question

Помогите пожалуйста (3m-7)×0,6-0,8×(4m-5)-(-1,7-1,4m)

Answer 1

(3m-7)×0,6-0,8×(4m-5)-(-1,7-1,4m)=1,8m-4.2-3.2m+4+1.7+1.4m=1.8m+1.4m-3.2m+4+1.7-4.2=3.2m-3.2m+5.7-4.2=1.2=1.5

Answer 2

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