Question

8t+2-(5+7t)-4m помогите решить

Answer 1

8t+2-(5+7t)-4m =
= 8t+2-5-7t-4m =
= 1t - 3 - 4m =
= t - 3 - 4m
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Answer 2

8t+2-(5+7t)=4m
2-(5+7t)=4m-8t
-(5+7t)=4m-8t-2
-7t=4m-8t-2+5
-7t+8t=4m+3
t=4m+3