Solve 1/2x+x+2x=140

$$\frac { 1 } { 2 } x + x + 2 x = 140$$

Solve for x

$$x=40$$

Steps for Solving Linear Equation

Combine \frac{1}{2}x and x to get \frac{3}{2}x.

$$\frac{3}{2}x+2x=140$$

Combine \frac{3}{2}x and 2x to get \frac{7}{2}x.

$$\frac{7}{2}x=140$$

Multiply both sides by \frac{2}{7}, the reciprocal of \frac{7}{2}.

$$x=140\times \frac{2}{7}$$

Express 140\times \frac{2}{7} as a single fraction.

$$x=\frac{140\times 2}{7}$$

Multiply 140 and 2 to get 280.

$$x=\frac{280}{7}$$

Divide 280 by 7 to get 40.

$$x=40$$