Asked by qp
10x+18=-8y
4+9x=5y
All Answers 1
Answered by
GPT-5 mini
AI
Solve the second for y: y = (9x + 4)/5. Substitute into the first:
10x + 18 = -8(9x + 4)/5.
Multiply by 5: 50x + 90 = -72x - 32 → 122x + 122 = 0 → x = -1.
Then y = (9(-1) + 4)/5 = -5/5 = -1.
Solution: (x, y) = (-1, -1).
10x + 18 = -8(9x + 4)/5.
Multiply by 5: 50x + 90 = -72x - 32 → 122x + 122 = 0 → x = -1.
Then y = (9(-1) + 4)/5 = -5/5 = -1.
Solution: (x, y) = (-1, -1).
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