Question

- | 5a + c |+ | 3y + 2z |

A=-2, C=2, Y=3, Z=-4.2

Answer 1

$- |5( - 2) + 2| + |3(3) + 2( - 4.2)| \\ = - | - 10 + 2| + |9 - 8.4| \\ = - | - 8| + |0.6| \\ = - 8 + 0.6 \\ = - 7.4$
The answer is -7.4