Combine the opposite terms in .

Subtract from .

Add and .

Combine and .

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

Combine and .

Combine the numerators over the common denominator.

Add and .

Reorder and .

Add and .

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

Simplify terms.

Combine and .

Combine the numerators over the common denominator.

Simplify each term.

Simplify the numerator.

Factor out of .

Factor out of .

Factor out of .

Factor out of .

Multiply by .

Add and .

Move to the left of .

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

Combine and .

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 .

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 3/2b+(b+45)+90+(2b-90)+b=540