CPM Homework Help : CC2 Problem 2-38

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2-38.

Simplify each of the following expressions to find the length of the tightrope.

$5+2+8$
Answer (a):
$5+2+8=15$

$4+9+3$
Answer (b):
$4+9+3=16$

$7+3+2+(-4)$
Hint (c):
Pay attention to the negative sign. Remember that $-4$ means $4$ backwards steps.
Answer (c):
$7+3+2+(-4)=8$

$8+6+2+(-5)$
Hint (d):
Simplify this expression like you did with part (c).

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