Question

How do you solve `x+ 4+ 3x = 72`?

Answer 1

Combine the variable (x) terms.

Explanation:

`x + 4 + 3 xx x = 72`

`4 xx x + 4 = 72` ; `4 xx x = 68` ; `x = 17`

CHECK:
`x + 4 + 3 xx x = 72` ; `17 + 4 + 3 xx 17 = 72`

`21 + 51 = 72` ; `72 = 72` CORRECT!