Question

For what value of p, x=2 and y=3 is the solution of equation (p+1)x-(2p+3)y+1=0

Answer 1

x=2
(p+1)2-(2p+3)3+1 =0
(2p+2)(-2p-3)3+1=0
(". )(-6p-9)+1=0
2p(-6p-9)2(-6p-9)+1=0
-12p^2-18p-12p-18+1=0
-12p^2-30p-17=0
-12