Move 2y to the right hand side of the equation by subtracting 2y from both sides. x=−2y+7 3x−2y=−3
Replace all occurrences of x with the solution found by solving the last equation for x. In this case, the value substituted is −2y+7. x=−2y+7 3(−2y+7)−2y=−3
Simplify each term. x=−2y+7 −6y+21−2y=−3
Add −6y and −2y to get −8y. x=−2y+7 −8y+21=−3
Move 21 to the right hand side of the equation. x=−2y+7 −8y=−21−3
Subtract 3 from −21 to get −24. x=−2y+7 −8y=−24
Divide each term in the equation by −8. x=−2y+7 y=3
Replace all occurrences of y with the solution found by solving the last equation for y. In this case, the value substituted is 3. x=−2(3)+7 y=3
