Question

How many solutions does this equation have? –16p − 20 = –3(7p − 20)

Answer 1

one solution , p = 16

Explanation:

given the equation

- 16p - 20 = - 3(7p - 20) ← distribute parenthesis by - 3

- 16p - 20 = - 21p + 60 ( add 21p to both sides )

- 16p + 21p - 20 = - 21p + 21p + 60 ( simplify both sides )

5p - 20 = 60 ( add 20 to both sides )

5p - 20 + 20 = 60 + 20 ( simplify both sides )

5p = 80 ( divide both sides by 5 )

`(5)/(5)` p =
`(80)/(5)` , that is

p = 16