Question 213822: Twenty-one more than three times a number is twelve less than the sum of the number and 5. Find the number. Answer by nerdybill(7384) (Show Source):
You can put this solution on YOUR website! Twenty-one more than three times a number is twelve less than the sum of the number and 5. Find the number.
.
Let x = "the number"
then
3x + 21 = (x+5) - 12
3x + 21 = x - 7
2x + 21 = -7
2x = -28
x = -14
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The number is -14
