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Elanso [62]
3 years ago
12

Seven less than a number is fifteen

Mathematics
2 answers:
DedPeter [7]3 years ago
7 0

7-x=15

7-(-8)=15

what we have to do in order to solve this is change the 2 subtraction signs into a addition sign because a negative plus a negative makes a positive.

Juliette [100K]3 years ago
6 0
Actually, its the other way around, its not 7-x=15 but
x - 7 = 15 \\ x = 15 + 7 \\ x = 22
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Will give brainliest!!!!<br>Explain how solving -7y &gt; 161 is different from solving 7y &gt; -161.
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