Answer:
12x
Explanation:
What is the answer for 3x + 9x?
We combine the two terms.
3x + 9x = 12x
So, the answer is 12x
The answer is :
Work/Explanation:
This expression can be simplified because 3x and 9x are like terms. They both contain the same variable and the same exponent.
We add the numbers and rewrite the variable.
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