Solve 15=100+5/4x

$$15 = 100+ \frac{ 5 }{ 4 } x$$

Solve for x

$$x=-68$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$100+\frac{5}{4}x=15$$

Subtract 100 from both sides.

$$\frac{5}{4}x=15-100$$

Subtract 100 from 15 to get -85.

$$\frac{5}{4}x=-85$$

Multiply both sides by \frac{4}{5}, the reciprocal of \frac{5}{4}.

$$x=-85\times \frac{4}{5}$$

Express -85\times \frac{4}{5} as a single fraction.

$$x=\frac{-85\times 4}{5}$$

Multiply -85 and 4 to get -340.

$$x=\frac{-340}{5}$$

Divide -340 by 5 to get -68.

$$x=-68$$