SOLUTION: Twice a number increased by the product of 2 more than that number and 3 is equal to 21. What is the number?

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Question 1067821: Twice a number increased by the product of 2 more than that number and 3 is equal to 21. What is the number?

Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
The number, n

2n%2B%282%2Bn%293=21

n=3



--
No. Not any decimal.
Twice a Number, 2n
-
Product of 2 more than that number and 3, %282%2Bn%293
----The RAISED DOT which may appear indicates multiplication. The site is automatically placing that dot.
? %282%2Bn%29%283%29 ?

Answer by ikleyn(52810) About Me  (Show Source):
You can put this solution on YOUR website!
.
The equation is

2n + (2+n)*3 = 21.

The solution is n = 5.