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

What equation did she get as a result of that substitution?
x = –2y – 2
2x + 3y = –6

–2y – 2 = –6
–2y + 1 = –6
-4y – 2 + 3y = –6
–4y – 4 + 3y = –6

User Morgana
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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

User Decltype
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