Question

1. |2x + z| + 2y

a = –2, b = –3, c = 2, x = 2.1, y = 3, and z = –4.2.

2. 4a – |3b + 2c|

Answer 1

6 and -13

Explanation:

Absolute Value

Absolute Values are magnitudes (only positive values) of any values (be it positive or negative.)

Example: |4.5| = 4.5, |-6.7| = 6.7

Solution

1. |2x + z| + 2y

= |2(2.1) + (-4.2)| + 2(3)

= |4.2 - 4.2| + 6

= 0 + 6

= 6

2. 4a - |3b + 2c|

= 4(-2) - |3(-3) + 2(2)|

= -8 - |-9 + 4|

= -8 - |-5|

= -8 - 5

= -13