Solve for x
x=2\left(y-4\right)
Solve for y
y=\frac{x+8}{2}
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\frac{1}{2}x+4=y
Swap sides so that all variable terms are on the left hand side.
\frac{1}{2}x=y-4
Subtract 4 from both sides.
\frac{\frac{1}{2}x}{\frac{1}{2}}=\frac{y-4}{\frac{1}{2}}
Multiply both sides by 2.
x=\frac{y-4}{\frac{1}{2}}
Dividing by \frac{1}{2} undoes the multiplication by \frac{1}{2}.
x=2y-8
Divide y-4 by \frac{1}{2} by multiplying y-4 by the reciprocal of \frac{1}{2}.
Examples
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Matrix
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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