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
x = 6 check:
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!!