Solve for c
c\leq 48
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72\geq -24+48+2c-c
The opposite of -48 is 48.
72\geq 24+2c-c
Add -24 and 48 to get 24.
72\geq 24+c
Combine 2c and -c to get c.
24+c\leq 72
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
c\leq 72-24
Subtract 24 from both sides.
c\leq 48
Subtract 24 from 72 to get 48.
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