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Question
Solve for x and y:
2x + 3y + 1 = 0
`(7-4x)/3 = y`
Solution
The given equations are:
`(7-4x)/3 = y`
⇒ 4x + 3y = 7 ……..(i)
and 2x + 3y + 1 = 0
⇒2x + 3y = -1 ……….(ii)
On subtracting (ii) from (i), we get:
2x = 8
⇒x = 4
On substituting x = 4 in (i), we get:
16x + 3y = 7
⇒3y = (7 – 16) = -9
⇒y = -3
Hence, the solution is x = 4 and y = -3.
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