Solve x^2-z=54

$$x ^ { 2 } - z = 54$$

Solve for z

$$z=x^{2}-54$$

Steps for Solving Linear Equation

Subtract x^{2} from both sides.

$$-z=54-x^{2}$$

Divide both sides by -1.

$$\frac{-z}{-1}=\frac{54-x^{2}}{-1}$$

Dividing by -1 undoes the multiplication by -1.

$$z=\frac{54-x^{2}}{-1}$$

Divide 54-x^{2} by -1.

$$z=x^{2}-54$$

Solve for x

$$x=\sqrt{z+54}$$

$$x=-\sqrt{z+54}\text{, }z\geq -54$$