X-2=2o

# Five Times A Certain Number, Minus 5 Is Equal To 7 More Than Three Times The Number. What Is The Number?

Let x = a number

5x - 5 = 3x + 7

5x - 3x - 5 = 3x - 3x + 7

2x - 5 = 7

2x - 5 + 5 = 7 + 5

2x = 12

2x/2 = 12/2

5(6) - 5 = 3(6) + 7

30 - 5 = 18 + 7

25 = 25

5x - 5 = 3x + 7

5x - 3x - 5 = 3x - 3x + 7

2x - 5 = 7

2x - 5 + 5 = 7 + 5

2x = 12

2x/2 = 12/2

**x = 6**check:5(6) - 5 = 3(6) + 7

30 - 5 = 18 + 7

25 = 25

The number should be 6!!