Answer:
X=-3
Explanation:
-7(-3)=21
the negatives when multipled become positive
21=21
so x=-3
Answer: x = -3
i simply divided by -7, in order to get x by itself.
-7/-7x = 21/-7
that cancels out the -7 on the left side, and leaves us with -3 on the right side!
x = -3
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