Solve for x
x=-\frac{8y}{7}+80
Solve for y
y=-\frac{7x}{8}+70
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35x=2800-40y
Subtract 40y from both sides.
\frac{35x}{35}=\frac{2800-40y}{35}
Divide both sides by 35.
x=\frac{2800-40y}{35}
Dividing by 35 undoes the multiplication by 35.
x=-\frac{8y}{7}+80
Divide 2800-40y by 35.
40y=2800-35x
Subtract 35x from both sides.
\frac{40y}{40}=\frac{2800-35x}{40}
Divide both sides by 40.
y=\frac{2800-35x}{40}
Dividing by 40 undoes the multiplication by 40.
y=-\frac{7x}{8}+70
Divide 2800-35x by 40.
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