Combine and .

Add to both sides of the equation.

Simplify the left side of the equation.

To write as a fraction with a common denominator, multiply by .

Write each expression with a common denominator of , by multiplying each by an appropriate factor of .

Combine.

Multiply by .

Combine the numerators over the common denominator.

Add and .

Reorder and .

Add and .

Subtract from both sides of the equation.

Subtract from .

Multiply both sides of the equation by .

Simplify the left side.

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Cancel the common factor of .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Simplify .

Cancel the common factor of .

Factor out of .

Cancel the common factor.

Rewrite the expression.

Multiply by .

Solve for b 2/3b+5=20-b