Solve for x
x=\frac{y+20}{5}
Solve for y
y=5\left(x-4\right)
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5x-20=y
Swap sides so that all variable terms are on the left hand side.
5x=y+20
Add 20 to both sides.
\frac{5x}{5}=\frac{y+20}{5}
Divide both sides by 5.
x=\frac{y+20}{5}
Dividing by 5 undoes the multiplication by 5.
x=\frac{y}{5}+4
Divide y+20 by 5.
Examples
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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