2x+3-4+5=7x?

Answer 1

2 x + 3 - 4 + 5 = 7 x

2 x - 1 + 5 = 7 x

2 x + 4 = 7 x

Subtract 2 x to both sides

4 = 7 x - 2 x

4 = 5 x

5 x = 4

Divide both sides by 5

x = 4 / 5