Solving equations using addition

When solving equations using addition, they will have the this form:    x − b = c

Recall that ax + b = c is a linear equation.

Thus, the equation x − b = c is a linear equation with a = 1 and a negative sign in front of b.

To see this, notice that 1.x = x and − = + -

Thus, we can rewrite x − b = c as

1.x + -b = c

You can solve x − b = c in one step.

When solving one step equation of the form x − b = c, rewrite x − b = c as
x + -b = c and add b to both sides of the equation.

We will illustrate with two examples.

Example #1

Solve x − 2 = 8

how to solve x + -2 = 8

Example #2 

Solve x − 4 = -6

how to solve x + -4 = -6


Related content:

Linear equations calculator

Easily solve equations of the form x − b = c with the click of a button!








Page copy protected against web site content infringement by Copyscape

Recent Articles

  1. Average age word problem

    Aug 09, 16 01:40 PM

    Average age of Dipu and Apu is 22 years. Average age of Dipu and Tipu is 24 years. Age of Dipu is 21 years. What are the ages of Apu, and tipu ? Let

    Read More



New math lessons

Your email is safe with us. We will only use it to inform you about new math lessons.