Answer: x = 3
Steps: 40x + 120 = 20x + 180
Subtract 120 from both sides: 40x + 120 - 120 = 20x + 180 - 120
Simplify: 40x = 20x + 60
Subtract 20x from both sides: 40x - 20x = 20x + 60 - 20x
Simplify: 20x = 60
Divide both sides by 20: 20x ÷ 20 = 60 ÷ 20
Simplify: x = 3
Plz mark brainliest:)
