हल करना x = a + 7 and y = b - a show that x + y = b + 7 . | 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

$$x = a + 7 y = b - a , x + y = b + 7$$