Question

evaluate the following.
(a) $\vert -4 + 7 \vert = \square$
(b) $\vert -4 \vert + 7 = \square$

Explanation:

Step1: Calculate inside absolute value

$-4 + 7 = 3$

Step2: Apply absolute value to result

$|3| = 3$

Step3: Apply absolute value to -4

$|-4| = 4$

Step4: Add 7 to the result

$4 + 7 = 11$

Answer:

(a) 3
(b) 11