# Pre-Algebra Examples

,

Using the point-slope form , plug in , , and .

Simplify the right side.

Multiply by to get .

Apply the distributive property.

Simplify .

Write as a fraction with denominator .

Multiply and to get .

Simplify .

Write as a fraction with denominator .

Multiply and to get .

Move the negative in front of the fraction.

Move all terms not containing to the right side of the equation.

Add to both sides of the equation.

Simplify the right 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 to get .

Combine the numerators over the common denominator.

Simplify the numerator.

Multiply by to get .

Multiply by to get .

Subtract from .

Reorder and .

Reorder terms.