How do you solve -6.7x - 2.4= 31.1?

1 Answer
May 16, 2017

See a solution process below:

Explanation:

First, add color(red)(2.4) to each side of the equation to isolate the x term while keeping the equation balanced:

-6.7x - 2.4 + color(red)(2.4) = 31.1 + color(red)(2.4)

-6.7x - 0 = 33.5

-6.7x = 33.5

Now, divide each side of the equation by color(red)(-6.7) to solve for x while keeping the equation balanced:

(-6.7x)/color(red)(-6.7) = 33.5/color(red)(-6.7)

(color(red)(cancel(color(black)(-6.7)))x)/cancel(color(red)(-6.7)) = -5

x = -5