Solve for x
x=\frac{13-x_{2}}{3}
Solve for x_2
x_{2}=13-3x
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3x-8=5-x_{2}
Subtract x_{2} from both sides.
3x=5-x_{2}+8
Add 8 to both sides.
3x=13-x_{2}
Add 5 and 8 to get 13.
\frac{3x}{3}=\frac{13-x_{2}}{3}
Divide both sides by 3.
x=\frac{13-x_{2}}{3}
Dividing by 3 undoes the multiplication by 3.
x_{2}-8=5-3x
Subtract 3x from both sides.
x_{2}=5-3x+8
Add 8 to both sides.
x_{2}=13-3x
Add 5 and 8 to get 13.
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