Which equation can be used to solve for xxx in the following diagram?

Choose 1

(Choice A)
A
60+ 90 + (4x - 20) = 18060+90+(4x−20)=18060, plus, 90, plus, left parenthesis, 4, x, minus, 20, right parenthesis, equals, 180

(Choice B)
B
60 + (4x - 20) = 9060+(4x−20)=9060, plus, left parenthesis, 4, x, minus, 20, right parenthesis, equals, 90

(Choice C)
C
60 + (4x - 20) = 18060+(4x−20)=