How do you do substitution

This is off of Google since I'm not very good at explaining...

The substitution method is most useful for systems of 2 equations in 2 unknowns. The main idea here is that we solve one of the equations for one of the unknowns, and then substitute the result into the other equation. Step 1: Solve one of the equations for either x = or y = .

And this video from Khan Academy might be helpful too :)

https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th-systems-topic/cc-8th-systems-with-substitution/v/the-substitution-method

Thanks for that resource, saseflower.....sometimes....I find trying to explain something is more confusing to the questioners and a "professional" presentation by someone else is a better route....

5 points from me....!!!!

Thanks CPhill! :)