Solve for a (complex solution)
\left\{\begin{matrix}\\a=\frac{b}{3}\text{, }&\text{unconditionally}\\a\in \mathrm{C}\text{, }&x=-1\end{matrix}\right.
Solve for b (complex solution)
\left\{\begin{matrix}\\b=3a\text{, }&\text{unconditionally}\\b\in \mathrm{C}\text{, }&x=-1\end{matrix}\right.
Solve for a
\left\{\begin{matrix}\\a=\frac{b}{3}\text{, }&\text{unconditionally}\\a\in \mathrm{R}\text{, }&x=-1\end{matrix}\right.
Solve for b
\left\{\begin{matrix}\\b=3a\text{, }&\text{unconditionally}\\b\in \mathrm{R}\text{, }&x=-1\end{matrix}\right.
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3ax-b+3a=bx
Add 3a to both sides.
3ax+3a=bx+b
Add b to both sides.
\left(3x+3\right)a=bx+b
Combine all terms containing a.
\frac{\left(3x+3\right)a}{3x+3}=\frac{bx+b}{3x+3}
Divide both sides by 3x+3.
a=\frac{bx+b}{3x+3}
Dividing by 3x+3 undoes the multiplication by 3x+3.
a=\frac{b}{3}
Divide bx+b by 3x+3.
3ax-b-bx=-3a
Subtract bx from both sides.
-b-bx=-3a-3ax
Subtract 3ax from both sides.
\left(-1-x\right)b=-3a-3ax
Combine all terms containing b.
\left(-x-1\right)b=-3ax-3a
The equation is in standard form.
\frac{\left(-x-1\right)b}{-x-1}=\frac{-3ax-3a}{-x-1}
Divide both sides by -1-x.
b=\frac{-3ax-3a}{-x-1}
Dividing by -1-x undoes the multiplication by -1-x.
b=3a
Divide -3a-3ax by -1-x.
3ax-b+3a=bx
Add 3a to both sides.
3ax+3a=bx+b
Add b to both sides.
\left(3x+3\right)a=bx+b
Combine all terms containing a.
\frac{\left(3x+3\right)a}{3x+3}=\frac{bx+b}{3x+3}
Divide both sides by 3x+3.
a=\frac{bx+b}{3x+3}
Dividing by 3x+3 undoes the multiplication by 3x+3.
a=\frac{b}{3}
Divide bx+b by 3x+3.
3ax-b-bx=-3a
Subtract bx from both sides.
-b-bx=-3a-3ax
Subtract 3ax from both sides.
\left(-1-x\right)b=-3a-3ax
Combine all terms containing b.
\left(-x-1\right)b=-3ax-3a
The equation is in standard form.
\frac{\left(-x-1\right)b}{-x-1}=\frac{-3ax-3a}{-x-1}
Divide both sides by -1-x.
b=\frac{-3ax-3a}{-x-1}
Dividing by -1-x undoes the multiplication by -1-x.
b=3a
Divide -3a-3ax by -1-x.
Examples
Quadratic equation
{ 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}