Answer: x = 5
Step-by-step explanation:
x + 2x - x + 7 = 4x - x + 2
Left side:
x + 2x = 3x
3x - x = 2x (bring down the 7)
So 2x +7
Right side:
4x - x = 3x (bring down the 2)
So 3x + 2
2x + 7 = 3x + 2
Subtract 2 from both sides (7-2 and 2-2)
2x + 5 = 3x
Subtract 2x from 3x
5 = x
