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3x+4y=-14 -2x-3y=11
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Step-by-step explanation:
Answered by
1
Answer:
x=2
y=-5
Step-by-step explanation:
3x+4y = -14 ........ (1)
-2x-3y = 11 .......... (2)
Multiplying eq.(1) by 2 and eq.(2) by 3, we get
6x+8y = -28 ...... (3)
-6x-9y = 33 ........ (4)
Adding eq. (3) and (4), we get,
6x+8y-6x-9y = -28+33
⇒-y = 5
⇒ y = -5
From eq. (1), we get,
3x+4y = -14
⇒3x+4×(-5) = -14
⇒3x-20 = -14
⇒3x = 6
⇒ x = 2
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