Solve for x
\left\{\begin{matrix}x=-\frac{y\left(y^{2}-yz-z\right)}{z\left(y^{2}-z^{2}\right)}\text{, }&z\neq 0\text{ and }y\neq 0\text{ and }|z|\neq |y|\\x\in \mathrm{R}\text{, }&z=\frac{1}{2}\text{ and }y=-\frac{1}{2}\end{matrix}\right.
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yz\left(y-z\right)x+z\left(y-z\right)zx+y\left(y-z\right)y=yz
Multiply both sides of the equation by yz\left(y-z\right), the least common multiple of y,z,y-z.
\left(zy^{2}-yz^{2}\right)x+z\left(y-z\right)zx+y\left(y-z\right)y=yz
Use the distributive property to multiply yz by y-z.
zy^{2}x-yz^{2}x+z\left(y-z\right)zx+y\left(y-z\right)y=yz
Use the distributive property to multiply zy^{2}-yz^{2} by x.
zy^{2}x-yz^{2}x+z^{2}\left(y-z\right)x+y\left(y-z\right)y=yz
Multiply z and z to get z^{2}.
zy^{2}x-yz^{2}x+\left(z^{2}y-z^{3}\right)x+y\left(y-z\right)y=yz
Use the distributive property to multiply z^{2} by y-z.
zy^{2}x-yz^{2}x+z^{2}yx-z^{3}x+y\left(y-z\right)y=yz
Use the distributive property to multiply z^{2}y-z^{3} by x.
zy^{2}x-z^{3}x+y\left(y-z\right)y=yz
Combine -yz^{2}x and z^{2}yx to get 0.
zy^{2}x-z^{3}x+y^{2}\left(y-z\right)=yz
Multiply y and y to get y^{2}.
zy^{2}x-z^{3}x+y^{3}-y^{2}z=yz
Use the distributive property to multiply y^{2} by y-z.
zy^{2}x-z^{3}x-y^{2}z=yz-y^{3}
Subtract y^{3} from both sides.
zy^{2}x-z^{3}x=yz-y^{3}+y^{2}z
Add y^{2}z to both sides.
\left(zy^{2}-z^{3}\right)x=yz-y^{3}+y^{2}z
Combine all terms containing x.
\left(zy^{2}-z^{3}\right)x=zy^{2}+yz-y^{3}
The equation is in standard form.
\frac{\left(zy^{2}-z^{3}\right)x}{zy^{2}-z^{3}}=\frac{y\left(z+yz-y^{2}\right)}{zy^{2}-z^{3}}
Divide both sides by zy^{2}-z^{3}.
x=\frac{y\left(z+yz-y^{2}\right)}{zy^{2}-z^{3}}
Dividing by zy^{2}-z^{3} undoes the multiplication by zy^{2}-z^{3}.
x=\frac{y\left(z+yz-y^{2}\right)}{z\left(y^{2}-z^{2}\right)}
Divide y\left(z-y^{2}+yz\right) by zy^{2}-z^{3}.
Examples
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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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