Question

for which value of P does the pair of equations given below has unique solution 2 x minus 3 Y is equal to 15 and px + 2 Y is equals to 14

Answer 1

2x-3y=15
Px+2y=14
Unique solution
$\frac{a1}{a2} \: is \: not \: equal \: to \: \frac{b1}{b2} \\ \frac{2}{p} is \: not \: equal \: to \frac{3}{2} \\ by \: crossmuliply \\ 4notequal \: to3p \\ p \: isnot \: equalo \: \frac{3}{4}$