Answer:
Step-by-step explanation:
Because when adding or solving it, you can do the formula of PMDAS [(×, ÷, +, -)].
First is the parethesis, y + 6, the equivalent for y is 3, so 3 + 6 is 9.
and it will be 2(9), multiply the 9 and 2, (2 × 9) and the answer is 18.
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