How do you solve #12= 5v + 7#?

1 Answer
Jan 20, 2018

See a solution process below:

Explanation:

First, subtract #color(red)(7)# from each side of the equation to isolate the #v# term while keeping the equation balanced:

#12 - color(red)(7) = 5v + 7 - color(red)(7)#

#5 = 5v + 0#

#5 = 5v#

Now, divide each side of the equation by #color(red)(5)# to solve for #v# while keeping the equation balanced:

#5/color(red)(5) = (5v)/color(red)(5)#

#1 = (color(red)(cancel(color(black)(5)))v)/cancel(color(red)(5))#

#1 = v#

#v = 1#