Question

Which value of the variable m satisfies the equation 20 = -2(4m - 5)

Answer 1

m = - 1.25

Explanation:

20 = - 2(4m - 5) ← divide both sides by - 2

- 10 = 4m - 5 ( add 5 to both sides )

- 5 = 4m ( divide both sides by 4 )

-
`(5)/(4)` = m , that is

m = - 1.25