Add and .

Add and .

Add and .

Simplify by adding and subtracting.

Subtract from .

Add and .

Subtract from both sides of the equation.

Subtract from .

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Divide by .

Solve for y y+(2y-100)+(y+(2y-100)+1000)=5000