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Question 268177: Write an equation and solve..
Twice a number increased by 12 is equal to 31 less than three times the number. Find the number.
Answer by azhou4(12)   (Show Source):
You can put this solution on YOUR website! when you see "twice a number", it's two times of something. So it's 2n (n for number). Increased by 12 means plus 12. The word "is" in equations is an equal sign. So far, you have 2n+12.
On the other side of the equal sign, you have 31 less than 3 times a number. The words "less than" is tricky. 31 less than 3 times a number is actually going to be 3n-31.
So you get : 2n+12=3n-31
You simplify and you get n=43. Hope this helps!
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