How do you solve #z/4 - 5 = 9 #?

Question

2265 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-05-30T04:54:24

#z=56#

#z/4-5=9#

We try to keep all #z# terms on one side.
Add 5 to both sides

#z/4-5 color(red)(+5) = 9 color(red)(+5)#

#z/4= 14#

Next, multiply both sides by 4

#z/4color(red)(xx4) = 14 color(red)(xx4)#

#z/cancel(4)xxcancel(4) = 56#

This gives:

#z=56#

Answer 2 · 2016-05-30T04:55:46

Separate the constants from the variable, combine them for a final numerical answer for the variable.

# z/4 − 5 = 9# ADD '5' to both sides (keeps the equation equal).

# z/4 − 5 + 5 = 9 + 5 ; z/4 = 14# Now multiply both sides by 4.

# z/4 xx 4 = 14 xx 4 ; z = 56#