Solve for x
x=-\frac{17y}{39}+\frac{1}{260}
Solve for y
y=-\frac{39x}{17}+\frac{3}{340}
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7800x+3400y=30
Add 30 to both sides. Anything plus zero gives itself.
7800x=30-3400y
Subtract 3400y from both sides.
\frac{7800x}{7800}=\frac{30-3400y}{7800}
Divide both sides by 7800.
x=\frac{30-3400y}{7800}
Dividing by 7800 undoes the multiplication by 7800.
x=-\frac{17y}{39}+\frac{1}{260}
Divide 30-3400y by 7800.
7800x+3400y=30
Add 30 to both sides. Anything plus zero gives itself.
3400y=30-7800x
Subtract 7800x from both sides.
\frac{3400y}{3400}=\frac{30-7800x}{3400}
Divide both sides by 3400.
y=\frac{30-7800x}{3400}
Dividing by 3400 undoes the multiplication by 3400.
y=-\frac{39x}{17}+\frac{3}{340}
Divide 30-7800x by 3400.
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