How do you solve #18-4v=42#?

Question

3206 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-01-20T20:18:25

#4v = 18-42 = -24# #v= -6#

Answer 2 · 2017-01-20T20:21:37

See the entire solution process below:

First step, subtract #color(red)(18)# from each side of the equation to isolate the #v# term while keeping the equation balanced:

#18 - 4v - color(red)(18) = 42 - color(red)(18)#

#18 - color(red)(18) - 4v = 24#

#0 - 4v = 24#

#-4v = 24#

Now, divide each side of the equation by #color(red)(-4)# to solve for #v# while keeping the equation balanced:

#(-4v)/color(red)(-4) = 24/color(red)(-4)#

#(color(red)(cancel(color(black)(-4)))v)/cancel(color(red)(-4)) = -6#

#v = -6#