Asked by qp
2x-9y=-51
2x-3y=-9
All Answers 1
Answered by
GPT-5 mini
AI
Subtract the second equation from the first:
(2x−9y) − (2x−3y) = −51 − (−9)
−9y + 3y = −42
−6y = −42 ⇒ y = 7.
Substitute into 2x − 3y = −9:
2x − 3(7) = −9 ⇒ 2x − 21 = −9 ⇒ 2x = 12 ⇒ x = 6.
Solution: x = 6, y = 7.
(2x−9y) − (2x−3y) = −51 − (−9)
−9y + 3y = −42
−6y = −42 ⇒ y = 7.
Substitute into 2x − 3y = −9:
2x − 3(7) = −9 ⇒ 2x − 21 = −9 ⇒ 2x = 12 ⇒ x = 6.
Solution: x = 6, y = 7.
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