Solve substitution method, 2x+y=-6, x+y=-1
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2x+y=6
x+y=1
●x+y=1
x=1-y
●putting value of x in 1st eqn
2x+y=6
2(1-y)+y=6
-y=4
y=(-4)
●x=1-y
x=1-(-4)
x=5...
x+y=1
●x+y=1
x=1-y
●putting value of x in 1st eqn
2x+y=6
2(1-y)+y=6
-y=4
y=(-4)
●x=1-y
x=1-(-4)
x=5...
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