Solve 2x+40%x=7.2

$$2 x + 40 \% x = 7.2$$

Solve for x

$$x=3$$

Steps for Solving Linear Equation

Reduce the fraction \frac{40}{100} to lowest terms by extracting and canceling out 20.

$$2x+\frac{2}{5}x=7.2$$

Combine 2x and \frac{2}{5}x to get \frac{12}{5}x.

$$\frac{12}{5}x=7.2$$

Multiply both sides by \frac{5}{12}, the reciprocal of \frac{12}{5}.

$$x=7.2\times \frac{5}{12}$$

Convert decimal number 7.2 to fraction \frac{72}{10}. Reduce the fraction \frac{72}{10} to lowest terms by extracting and canceling out 2.

$$x=\frac{36}{5}\times \frac{5}{12}$$

Multiply \frac{36}{5} times \frac{5}{12} by multiplying numerator times numerator and denominator times denominator.

$$x=\frac{36\times 5}{5\times 12}$$

Cancel out 5 in both numerator and denominator.

$$x=\frac{36}{12}$$

Divide 36 by 12 to get 3.

$$x=3$$