How do you find the value of #x# given #5x-3=12?#

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Answer 1 · 2017-04-27T23:26:56

See the entire solution process below:

Step 1) Add #color(red)(3)# to each side of the equation to isolate the #x# term while keeping the equation balanced:

#5x - 3 + color(red)(3) = 12 + color(red)(3)#

#5x - 0 = 15#

#5x = 15#

Step 2) Divide each side of the equation by #color(red)(5)# to solve for #x# while keeping the equation balanced:

#(5x)/color(red)(5) = 15/color(red)(5)#

#(color(red)(cancel(color(black)(5)))x)/cancel(color(red)(5)) = 3#

#x = 3#