2x+y=12 x+y=0
then find the equation.
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2x+y=12
x-y=0
———-
3x=12
X=12/3=4
Put the value of x in eqn ...
2x+y=12
2*4+y=12
Y=12-8
Y=4
x-y=0
———-
3x=12
X=12/3=4
Put the value of x in eqn ...
2x+y=12
2*4+y=12
Y=12-8
Y=4
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