Solve for x
x=\frac{5-x_{2}}{2}
Solve for x_2
x_{2}=5-2x
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10x=25-5x_{2}
Subtract 5x_{2} from both sides.
\frac{10x}{10}=\frac{25-5x_{2}}{10}
Divide both sides by 10.
x=\frac{25-5x_{2}}{10}
Dividing by 10 undoes the multiplication by 10.
x=\frac{5-x_{2}}{2}
Divide 25-5x_{2} by 10.
5x_{2}=25-10x
Subtract 10x from both sides.
\frac{5x_{2}}{5}=\frac{25-10x}{5}
Divide both sides by 5.
x_{2}=\frac{25-10x}{5}
Dividing by 5 undoes the multiplication by 5.
x_{2}=5-2x
Divide 25-10x by 5.
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