हल करना x + y = 0; 2x - 5y = 42 | 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

$$x+y=0; 2x-5y=42$$