Question

What value of P makes the equation true?

2.5 + 0.15p = 0.4p

p = ___

Answer 1

Explanation:

2.5 + 0.15p = 0.4p

0.25p = 2.5 (subtract 0.15p on both sides)

p = 10 (multiply 4 on both sides)

Answer 2

`2.5 + 0.15p = 0.4p \\ 2.5 = 0.25p \\ p = (2.5)/(0.25) \\ \boxed{p = 10}`

10 is the right answer.