You can put this solution on YOUR website! "twice the sum of a number and 5 is equal to three times the difference of the number and 9. find the number."
x = the number
2(x + 5) = "twice the sum of a number and 5"
3(x - 9) = "three times the difference of the number and 9"
2(x + 5) = 3(x - 9) {formed equation, based on wording}
2x + 10 = 3x - 27 {used distributive property}
10 = x - 27 {subtracted 2x from both sides}
x = 37 {added 27 to both sides} www.algebrahouse.com
