x = 0.
2x + 7 = 7 + 5x
7 = 7 + 3x
0 = 3x
x = 0
2x + 3 + 4 = 7 + 5x
2x+7= 7+5x
Move 5x to the other side
Sign changes from +5x to -5x
2x-5x+7= 7+5x-5x
2x-5x+7= 7
3x+7= 7
Move +7 to the other side
Sign changes from +7 to -7
3x+7-7= 7-7
3x= 7-7
3x= 0
Divide both sides by 3
3x/3= 0/3
Answer: x= 0
