Solve for x
x\neq 0
y=1\text{ and }x\neq 0
Solve for y
y=1
x\neq 0
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yx=x\times 1
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
yx-x\times 1=0
Subtract x\times 1 from both sides.
xy-x=0
Reorder the terms.
\left(y-1\right)x=0
Combine all terms containing x.
x=0
Divide 0 by y-1.
x\in \emptyset
Variable x cannot be equal to 0.
y=\frac{x}{x}
Express x\times \frac{1}{x} as a single fraction.
y=1
Cancel out x in both numerator and denominator.
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}