3 (n + 7) = __ + 21
Answer?
2 answers:
Answer:
n=3
Step-by-step explanation:
Answer:
3n
Step-by-step explanation:
We can see that the 3 gets distributed into the parentheses since there is a +21 on the right (3×7=21) so we also have to distribute the 3 to the n
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12.
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hope this help, if you need futher help pm me
