Note: Determine whether the solution to the new equation is a solution to the old system of equations by graphing. Use Desmos!
The solution to the original system of equations
Solve the system of equations by SUBSTITUTION. (is also, is not)
6y + 5x = 8
x + 3y = - 7
What would your equation look like after the first substitution? (6y + 5(3y - 7) = 8, 6y + 5(- 3y - 7) = 8, 6(- 3y - 7) + 5x = 8, 6(3y + 8) + 5x = - 7)