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sp2606 [1]
3 years ago
9

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

Mathematics
1 answer:
Blizzard [7]3 years ago
5 0
Tracy put (-2y-2) where x is in the second equation. This resulted in
  2(-2y-2) +3y = -6
After eliminating parentheses, Tracy had
  -4y -4 +3y = -6

The 4th selection is appropriate:
  -4y - 4 + 3y = -6
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