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X+y=20….(1)
2x+y=22…(2)
Using elimination method, subtract eqn(1) from (2).
2x-x +y-y=22-20
X=2.
Solving for y in eqn(1); substitute the value of X=2
2+y=20
Y=20-2
Y=18
X+y=20….(1)
2x+y=22…(2)
Using elimination method, subtract eqn(1) from (2).
2x-x +y-y=22-20
X=2.
Solving for y in eqn(1); substitute the value of X=2
2+y=20
Y=20-2
Y=18
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