3 years ago

Tracy solved the system of equations by making a substitution for x in the second equation.

1 answer:

8 0

I: x = –2y – 2
II: 2x + 3y = –6

substitute I's x (x = –2y – 2) definition into II:
2*(-2y-2) + 3y = –6
-4y-4+3y=-6

which is the last option

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