Math
Solve for 2x = 5y + 45 and x = - y - 9
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Asked by
AnneS2
Last updated by
anonymous
x = - y - 9
2x = 5y + 45
2(- y - 9) = 5y + 45
2(- y) (2)( - 9) = 5y + 45
-2y-18= 5y + 45
-2y-18+18= 5y + 45+18
-2y= 5y +63
-2y-5y= 5y +63-5y
-7y=63
-7y/-7=63/-7
y=-9
x = - y - 9
x = - (-9) - 9
x=0