Question

What is the solution to the equation?
1 - Z/5 = 9


A.
z = 50

B.
z = 44

C.
z = –2

D.
z = – 40

Answer 1

What do you think first.

Answer 2

C

Answer 3

now show working why

Answer 4

idk I thought you were going to explain to me ;/

Answer 5

you can rearrange the equation so that Z is left on one side.
so first take the one to the other side, you have to -1 to both sides, this becomes.
\[\frac{ -Z }{ 5 } = 9-1\]
this becomes
\[\frac{ -Z }{ 5 } = 8\]

multiply both sides by 5 to move the 5 from the left hand side to the right
\[-Z=8\times5\]
\[-Z=40\]

to move the negative, just multiply both sides by -1
\[Z=-40\]

the answer is d

Answer 6

thank you