Manny is a incorrect his logic doesn't not provide any specific evidence to support his theory
5x - 2. Just combine like terms, and distribute the + to the second term.
Part A:square cross-section
<span>Part B: a Rectangle cross -section</span>
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Switch sides of your problem so it would look like
r -5=-4
20
multiply both sides by twenty
after that it would look like r-100=-80
then add 100 to both of your sides
then after your answer would be r=20
