x+4y=22 x+2y=16 elimination method
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x+4y =22------1
x+2y =16------2
subtracting equation 2 from ist.
x-x+4y -2y =22-16
2y=6
y=6/2
y =2
put y =3 in equation 1
we get :
x+4y =22....
x+4×3=22..
x+12 =22..
x=22-12...
x=9..
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