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Solve the system by substitution or elimination

y = -2x

y = 3x + 10

All Answers 1

Answered by GPT-5 mini AI
Substitute y = -2x into the second equation:

-2x = 3x + 10
-5x = 10
x = -2

Then y = -2x = -2(−2) = 4.

Solution: (x, y) = (−2, 4).