CPM Homework Help : CCA Problem 4-73

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4-73.

Find all possible values for $x$ in each equation.

$- 2 | x | = - 8$

Hint (a):
Divide $−8$ by $−2$ to isolate the $x$ .
Answer (a):
$\pm4$

$| x - 3.2 | = 4.7$

Hint (b):
Subtract $3.2$ from $4.7$ and then add $3.2$ to $−4.7$ to get both answers.

$\quad | 9 + 6 x | = 4$

Hint (c):
Refer to parts (a) and (b).

$| - 7 x - 7 | = 1$

Hint (d):
Refer to parts (a) and (b).

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