Question

find the value of p, if x= 3 and y=-2 is a solution of the equation of the equation 4y=3x-15a,find the value of a

Answer 1

4y=3x-15a

when x =3& y=-2

4×-2=3×3-15a
15a=9+8=17
a=17/15

Answer 2

$given \: \: x = 3 \: \: \: \: and \: \: \: \: y = - 2 \\ given \: \: 4y = 3x - 15a \\ so \: \: a = \frac{3x - 4y}{15} \\ = \frac{3 \times 3 - 4 \times - 2}{15} = \frac{17}{15}$