Question

x+y=11 2x-3y=7 find x y​

Answer 1

x+y=11

x=y-11

substitute in 2x-3y=7

2×y-11-3y=7

2y-11-3y=7

-y-11=7

-y=7+11

-y=18y

y=-18

now find x

x=-18-11

x=-29

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