Resolver - 4x + 7y = 20; y = 3x + 15; x =; y = | 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

$$-4x+7y=20; y=3x+15; x=; y=$$