Answer:
see explanation
Step-by-step explanation:
(2)
given z = xm
isolate x by dividing both sides by m
[tex]\frac{z}{m}[/tex] = x
(4)
given z = x + m ( subtract m from both sides )
z - m = x
(6)
given - 3a - 4k = - 1
add 4k to both sides
- 3a = 4k - 1 ( to isolate a divide both sides by - 3 )
a = [tex]\frac{4k-1}{-3}[/tex] = - [tex]\frac{4k-1}{3}[/tex]
(8)
given z = - 4a ( divide both sides by - 4 )
a = - [tex]\frac{z}{4}[/tex]
