Question

2x - Зу = 13;
7x - 2y =20​

Answer 1

Answer:

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Step-by-step explanation:

2x-3y=13....x7

7x-2y=20....x2

14x-21y=91

14x-4y=40

subtract the equations

-17y=51

y=-3

hence put in equation

2x-3*-3=13

2x+9=13

2x=22

X=11