(12)/x =4

Solution

\frac{12}{x} = 4

x = 3

Solution steps

\frac{12}{x} = 4

Multiply both sides by

x

12 = 4 x

Switch sides

4 x = 12

Divide both sides by

4

x = 3

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = 3

\frac{4}{t - 3} = \frac{6}{t + 3}

\frac{1}{x + 3} = 0

h, r + \frac{3 Q}{h} = t

1 + \frac{7}{x + 5} = - \frac{x}{x + 5}

\frac{4}{5 a - 8} = a + 2