What is 2x plus 15 plus 2x equals 180?

First of all add all common factors.

In par.

(2x) + 15 + (2x) = 180

4x + 15 = 180

Divide 4x and 180 by 4.

(4x/4) + 15 = (180/4)

x + 15 = 45

Then subtract 15 to 15 and 45.

x + (15-15) = (45-15)

x = 30

Answer is X = 30.