Question

Y+7=x(y+4) make y the subject​

Answer 1

y =
`(4x-7)/(1-x)`

Explanation:

y + 7 = x(y + 4) ← distribute parenthesis

y + 7 = xy + 4x ( subtract xy from both sides )

y - xy + 7 = 4x ( subtract 7 from both sides )

y - xy = 4x - 7 ← factor out y from each term on the left side

y(1 - x) = 4x - 7 ← divide both sides by (1 - x)

y =
`(4x-7)/(1-x)`