Solve 0=b+x9-x

$$0 = b + x 9 - x$$

Solve for b

$$b=x-x_{9}$$

Solution Steps

Swap sides so that all variable terms are on the left hand side.

$$b+x_{9}-x=0$$

Subtract x_{9} from both sides. Anything subtracted from zero gives its negation.

$$b-x=-x_{9}$$

Add x to both sides.

$$b=-x_{9}+x$$

Solve for x

$$x=x_{9}+b$$

Steps for Solving Linear Equation

Swap sides so that all variable terms are on the left hand side.

$$b+x_{9}-x=0$$

Subtract b from both sides. Anything subtracted from zero gives its negation.

$$x_{9}-x=-b$$

Subtract x_{9} from both sides.

$$-x=-b-x_{9}$$

The equation is in standard form.

$$-x=-x_{9}-b$$

Divide both sides by -1.

$$\frac{-x}{-1}=\frac{-x_{9}-b}{-1}$$

Dividing by -1 undoes the multiplication by -1.

$$x=\frac{-x_{9}-b}{-1}$$

Divide -b-x_{9} by -1.

$$x=x_{9}+b$$