How do you solve #3x - 7= 27#?

Question

1961 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-07-22T17:55:26

See a solution process below:

Step 1) Add #color(red)(7)# to each side of the equation to isolate the #x# term while keeping the equation balanced:

#3x - 7 + color(red)(7) = 27 + color(red)(7)#

#3x - 0 = 34#

#3x = 34#

Step 2) Divide each side of the equation by #color(red)(3)# to solve for #x# while keeping the equation balanced:

#(3x)/color(red)(3) = 34/color(red)(3)#

#(color(red)(cancel(color(black)(3)))x)/cancel(color(red)(3)) = 34/3#

#x = 34/3#