Solve for a
a=b-\frac{x}{c}
c\neq 0
Solve for b
b=a+\frac{x}{c}
c\neq 0
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x+ca=bc
Multiply both sides of the equation by c.
ca=bc-x
Subtract x from both sides.
\frac{ca}{c}=\frac{bc-x}{c}
Divide both sides by c.
a=\frac{bc-x}{c}
Dividing by c undoes the multiplication by c.
a=b-\frac{x}{c}
Divide bc-x by c.
x+ca=bc
Multiply both sides of the equation by c.
bc=x+ca
Swap sides so that all variable terms are on the left hand side.
cb=x+ac
The equation is in standard form.
\frac{cb}{c}=\frac{x+ac}{c}
Divide both sides by c.
b=\frac{x+ac}{c}
Dividing by c undoes the multiplication by c.
b=a+\frac{x}{c}
Divide ac+x by c.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}