Solve 11=x+13*40/40+x

$$11= \frac{ x+13 \times 40 }{ 40+x }$$

Solve for x

$$x=8$$

Steps for Solving Linear Equation

Variable x cannot be equal to -40 since division by zero is not defined. Multiply both sides of the equation by x+40.

$$11\left(x+40\right)=x+13\times 40$$

Use the distributive property to multiply 11 by x+40.

$$11x+440=x+13\times 40$$

Multiply 13 and 40 to get 520.

$$11x+440=x+520$$

Subtract x from both sides.

$$11x+440-x=520$$

Combine 11x and -x to get 10x.

$$10x+440=520$$

Subtract 440 from both sides.

$$10x=520-440$$

Subtract 440 from 520 to get 80.

$$10x=80$$

Divide both sides by 10.

$$x=\frac{80}{10}$$

Divide 80 by 10 to get 8.

$$x=8$$