y=70-(8x-10
Solve for x
x=-\frac{y}{8}+10
Solve for y
y=80-8x
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y=70-8x+10
To find the opposite of 8x-10, find the opposite of each term.
y=80-8x
Add 70 and 10 to get 80.
80-8x=y
Swap sides so that all variable terms are on the left hand side.
-8x=y-80
Subtract 80 from both sides.
\frac{-8x}{-8}=\frac{y-80}{-8}
Divide both sides by -8.
x=\frac{y-80}{-8}
Dividing by -8 undoes the multiplication by -8.
x=-\frac{y}{8}+10
Divide y-80 by -8.
y=70-8x+10
To find the opposite of 8x-10, find the opposite of each term.
y=80-8x
Add 70 and 10 to get 80.
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