X + 2x -20 = 85
Combine like terms:
3x -20 = 85
Add 20 to both sides:
3x = 105
Divide both sides by 3
X = 35
Answer:
x = 35
Step-by-step explanation:
x + 2x - 20 = 85 , that is
3x - 20 = 85 ( add 20 to both sides )
3x = 105 ( divide both sides by 3 )
