हल करना 8p -7m-2n-5-(-8m-n+1 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$- 7 m - 2 n - 5 - ( - 8 m - n + 1$$