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Solve by cross multiplication x+2y+1=0 ,...

Solve by cross multiplication `x+2y+1=0 `, `2x-3y-12=0`

Text Solution

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`x+2y+1 = 0`
`2x-3y-12 = 0`
Solving these two equations with cross-multiplication method,
`x/(-24+3) = y/(2-(-12)) = 1/(-3-4)`
`=>x/-21 = -1/7=> x = 3`
`=>y/14 = -1/7 => y = -2`
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