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Olegator [25]
3 years ago
10

Solve each question mentally -3x = 21

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
6 0
X = -7

3 • 7 = 21

-3 • (-7) = 21

If you multiply two negative numbers you’ll end up with a positive. Thus, - 3 (-7) = 21.
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