Solving One-Step Equations with Subtraction!



Now we are going to be solving one-step equations that involve subtraction!

We are going to use the same methods to solve as we did with equations that were addition problems. Except this time, can you guess what the opposite mathematical operation is going to be? You got it - Addition! We are going to add in order to get the variable by itself!

Here are a few examples!




Example 1

subtraction equations



To see more examples demonstrated on video, check out the Solving Equations E-course. You'll be solving equations instantly with step-by-step video instruction and practice problems with step-by-step solutions.


Example 2

subtraction equations




Example 3

subtraction equations




Ready to try some on your own?

solving equations practice problems

One-step Equations Practice Problems


Solve for the missing variable

1. x - (-7) = -19

2. y - 7 = -21



How was it? Did you check your answers by substituting?

Check your answers using the Answer Key!








Answer Key


solving equations answers




Pre-algebra Students

If you are following the Pre-algebra curriculum, then your next lesson is on multiplication equations.





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