Question

1) make q the subject of the formula 4(q+p)=5+7q

2) Make x the subject of the formula y=2a-bx^2

Answer 1

1)
`q = (4p)/(3) -(5)/(3)`

2)
`x = (√(b -y + 2a) )/(b)`

Explanation:

1) 4(q + p) = 5 + 7q

Multiply 4(q + p):

4q + 4p = 5 + 7q

4p - 5 = 7q - 4q

4p - 5 = 3q

`(4p)/(3) - (5)/(3) = (3q)/(3)`

`(4p)/(3) - (5)/(3) = q` or
`q = (4p)/(3) - (5)/(3)`