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

1 Answer
Apr 27, 2017

See the entire solution process below:

Explanation:

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