Solve 3.1-12divx=2.8

$$3.1 - 12 \div x = 2.8$$

Solve for x

$$x=40$$

Steps for Solving Linear Equation

Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.

$$x\times 3.1-12=2.8x$$

Subtract 2.8x from both sides.

$$x\times 3.1-12-2.8x=0$$

Combine x\times 3.1 and -2.8x to get 0.3x.

$$0.3x-12=0$$

Add 12 to both sides. Anything plus zero gives itself.

$$0.3x=12$$

Divide both sides by 0.3.

$$x=\frac{12}{0.3}$$

Expand \frac{12}{0.3} by multiplying both numerator and the denominator by 10.

$$x=\frac{120}{3}$$

Divide 120 by 3 to get 40.

$$x=40$$