Asked by Christina
Solve by the substitution method.
2x+7y=16
x=22-7y
2x+7y=16
x=22-7y
Answers
Answered by
A
2x+7y=16
plug 22-7y for x
so
2(22-7y) + 7y=16
44-14y+7y=16
-7y= -44+16
-7y=-28
so y= 4
plug 22-7y for x
so
2(22-7y) + 7y=16
44-14y+7y=16
-7y= -44+16
-7y=-28
so y= 4
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