Solve for y
y=\frac{z-x^{2}}{15}
Solve for x (complex solution)
x=-\sqrt{z-15y}
x=\sqrt{z-15y}
Solve for x
x=\sqrt{z-15y}
x=-\sqrt{z-15y}\text{, }y\leq \frac{z}{15}
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15y-z=-x^{2}
Subtract x^{2} from both sides. Anything subtracted from zero gives its negation.
15y=-x^{2}+z
Add z to both sides.
15y=z-x^{2}
The equation is in standard form.
\frac{15y}{15}=\frac{z-x^{2}}{15}
Divide both sides by 15.
y=\frac{z-x^{2}}{15}
Dividing by 15 undoes the multiplication by 15.
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