The only option that is not viable to solve the systems of equations is:
D. Substitute y = 6/5x - 12 into the first equation
How to Solve Equations?
Given the systems of equations,
2x + y = 20 ----> equation 1
6x - 5y = 12 ----> equation 2
In order to solve the system of equations using the substitution method, rewrite 2x + y = 20:
2x + y - 2x = 20 - 2x
y = 20 - 2x
Or
2x = 20 - y
x = 10 - 1/2y
Or
6x - 5y = 12
-5y = -6x + 12
y = -6/5x - 12/5
or
6x = 12 + 5y
x = 2 + 5/6y
Therefore, the only option that is not viable to solve the systems of equations is:
D. Substitute y = 6/5x - 12 into the first equation
Learn more about the system of equations on:
https://brainly.com/question/13729904
#SPJ1
