Question

Z(4−1/2)+4 help please :(((

Answer 1

7.5

Explanation:

Remove parentheses; z=4-1/2+4

Add the 4s: -1/2+8

convert to fraction: 8*2/2-1/2

combine fractions:8*2-1/2

8*2-1=15

15/2

now convert 15/2 to a decimal, boom, 7.5

Answer 2

7/2z +4

Explanation:

z(4-1/2)+4

=7/2z +4