Apply the distributive property.

Multiply .

Combine and .

Combine and .

Combine and .

Move the negative in front of the fraction.

Subtract from both sides of the equation.

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

Combine and .

Combine the numerators over the common denominator.

Combine the numerators over the common denominator.

Simplify the numerator.

Multiply by .

Subtract from .

Multiply both sides of the equation by .

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Multiply by .

Add to both sides of the equation.

Add and .

Solve for a 1/3*(7a-1)=2a+7