Question

{(3x+y=7),(-5x+2y=3):}

Answer 1

5x-y=7

3x+2y=-1

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y=5x-7

3x+2y=-1

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y=5x-7

3x+2(5x-7)=-1

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y=5x-7

3x+10x-14=-1

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y=5x-7

13x=-1+14

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y=5x-7

13x=13

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y=5x-7

x=1

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y=5-7, y=-2

x=1

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/x,y/=/1,-2/

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