Solve x0.4+x=140

$$x0.4+x = 140$$

Solve for x

$$x=-\frac{2x_{0}}{5}+140$$

Solution Steps

Subtract x_{0}\times 0.4 from both sides.

$$x=140-x_{0}\times 0.4$$

Multiply -1 and 0.4 to get -0.4.

$$x=140-0.4x_{0}$$

Solve for x_0

$$x_{0}=-\frac{5x}{2}+350$$

Steps for Solving Linear Equation

Subtract x from both sides.

$$x_{0}\times 0.4=140-x$$

The equation is in standard form.

$$0.4x_{0}=140-x$$

Divide both sides of the equation by 0.4, which is the same as multiplying both sides by the reciprocal of the fraction.

$$\frac{0.4x_{0}}{0.4}=\frac{140-x}{0.4}$$

Dividing by 0.4 undoes the multiplication by 0.4.

$$x_{0}=\frac{140-x}{0.4}$$

Divide 140-x by 0.4 by multiplying 140-x by the reciprocal of 0.4.

$$x_{0}=-\frac{5x}{2}+350$$