4/x =8

Solution

\frac{4}{x} = 8

x = \frac{1}{2}

Solution steps

\frac{4}{x} = 8

Multiply both sides by

x

4 = 8 x

Switch sides

8 x = 4

Divide both sides by

8

x = \frac{1}{2}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{1}{2}

x, z = \frac{x + y}{x - y}

2 - \frac{1}{x - 3} = 1

\frac{12}{8} = \frac{6}{x}

\frac{5}{x} - 2 = 7 x

t, d = \frac{r}{1 + r t}