Question

find the value of p,if x=3 and y=-2 is a solution of the equation 2x+5yp=7

Answer 1

2x +5yp=7

2(3)+5(-2)p=7

6-10p=7

p=-(7-6)÷10

p=-1/10

Answer 2

$2x + 5yp = 7 \\ \\ on \: putting \: x = 3 \: and \: y = - 2 \\ \\ 2(3) + 5( - 2)p = 7 \\ \: \: \: \: \: \: \: \: \: \: \: \: 6 - 10p = 7 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: - 10p = 7 - 6 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: - 10p = 1 \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: p = - \frac{1}{10}$


The value of p is -1/10