Put the steps in order that are used to solve the following systems of equations by substitution.
-7x-2y= -13
- 2y = 11
= y = -4
=-7(2y+11)-2y=-13
= (3,-4)
=-16y=64
z2y11z2y+11
=-16y77=-13
14y77-2y-13
2(-4)+11 z=3
1. Solve one of the equations for one variable (in this case, solve -2y = 11 for y, which gives y = -4).
2. Subsitite the value of the variable found in step 1 into the other equation to solve for the other variable (-7(2y+11)-2y=-13 becomes -7(2(-4)+11)-2(-4)=-13).
3. Solve the equation found in step 2 for the remaining variable (-7(2(-4)+11)-2(-4)=-13 simplifies to z = 3).
4. Write the solution as an ordered pair, in this case (3, -4).