हल करना yb 7. x = 2m - n and y = m + n , show that x - y = m - 2n . | Equatix - Math Solver

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

a⋅(b-2)=3b

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

a⋅(b-2)=3b

Question

$$x = 2 m - n y = m + n , x - y = m - 2 n$$