Solve 1.4x*90%-x=390

$$1.4x \times 90 \% -x=390$$

Solve for x

$$x=1500$$

Steps for Solving Linear Equation

Reduce the fraction \frac{90}{100} to lowest terms by extracting and canceling out 10.

$$1.4x\times \frac{9}{10}-x=390$$

Convert decimal number 1.4 to fraction \frac{14}{10}. Reduce the fraction \frac{14}{10} to lowest terms by extracting and canceling out 2.

$$\frac{7}{5}x\times \frac{9}{10}-x=390$$

Multiply \frac{7}{5} times \frac{9}{10} by multiplying numerator times numerator and denominator times denominator.

$$\frac{7\times 9}{5\times 10}x-x=390$$

Do the multiplications in the fraction \frac{7\times 9}{5\times 10}.

$$\frac{63}{50}x-x=390$$

Combine \frac{63}{50}x and -x to get \frac{13}{50}x.

$$\frac{13}{50}x=390$$

Multiply both sides by \frac{50}{13}, the reciprocal of \frac{13}{50}.

$$x=390\times \frac{50}{13}$$

Express 390\times \frac{50}{13} as a single fraction.

$$x=\frac{390\times 50}{13}$$

Multiply 390 and 50 to get 19500.

$$x=\frac{19500}{13}$$

Divide 19500 by 13 to get 1500.

$$x=1500$$