Solve for x
x=\frac{y-y_{1}+3}{3}
Solve for y
y=3x+y_{1}-3
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3x-3=y-y_{1}
Swap sides so that all variable terms are on the left hand side.
3x=y-y_{1}+3
Add 3 to both sides.
\frac{3x}{3}=\frac{y-y_{1}+3}{3}
Divide both sides by 3.
x=\frac{y-y_{1}+3}{3}
Dividing by 3 undoes the multiplication by 3.
x=\frac{y}{3}-\frac{y_{1}}{3}+1
Divide y-y_{1}+3 by 3.
y=3x-3+y_{1}
Add y_{1} to both sides.
Examples
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Matrix
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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