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4 votes
A number r decreased by 13 is at most 15

asked
User He Hui
by
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2 Answers

0 votes
the answer is r is less than or equal to 28
answered
User Debajyoti Das
by
8.4k points
5 votes
r - 13 <= 15

Add 13 to both sides:

r <= 28

Note '<=' is less than or equal to.
answered
User Guitarlass
by
8.6k points

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