Question

Set 5x-9=3x+31 and solve x

Answer 1

x = 20

Explanation:

given the equation

5x - 9 = 3x + 31 ( subtract 3x from both sides )

5x - 3x - 9 = 3x - 3x + 31 ( simplify both sides )

2x - 9 = 31 ( add 9 to both sides )

2x - 9 + 9 = 31 + 9 ( simplify left side )

2x = 40 ( divide both sides by 2 )

`(2)/(2)` x =
`(20)/(2)` , that is

x = 20