Solve for p
p\leq 70
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28+2p\leq 168
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
2p\leq 168-28
Subtract 28 from both sides.
2p\leq 140
Subtract 28 from 168 to get 140.
p\leq \frac{140}{2}
Divide both sides by 2. Since 2 is positive, the inequality direction remains the same.
p\leq 70
Divide 140 by 2 to get 70.
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