SolveTwo Equations by Substitution Part 1

There are many ways to approach finding the solution to a system of equations. Here we look at substitution. In substitution, we find a solution of one of the equations in terms of one of the variables (lets say x) then put that solution everywhere we see that variable (x). In this case, both equations are already in terms of y.

Category:

Education

Tags:

• Math
• Algebra
• Linear
• Equations
• Substitution

[BrotherJazzy]

first of all you ar supposed ti have two different variables...HOw ciuld you substitue y if you did not include y into the equation...the whole goal of substitution is to create a equation that has a coeffiecent of one....therefore WTF are you doing.....I bet you dont know....who taught you how to do mat you dog in 4:56

[tqnohe]

There are two variables in this problem: two equations and two variables. The name of the game here is substitution. Watch the entire video from the start. First we get an both equation 1 and equation 2 equal to y. That would be a = b and c = b Then the set the two right sides equal to each other ... since they both equal y. We then solve for the x. Once that x is found we go back to either one of the original equation, substitute that value for x and solve for y.

[IronMaiden7S7S]

Some times I dont even watch these videos for the math. He just raise's my self-esteem for some odd reason.

[IronMaiden7S7S]

I wish he was still making math videos. I would pass Algebra I. But, he only makes these, so I FAIL!!! Thanks anyways.

[MiniDeadmau5]

I wish he were my grandfather!

[Ra1ndropz]

I LOVE YOU

[LordXamot]

@BrotherJazzy I bet his dog also taught you how to spell.

[CocodriloNYC]

NIce dog

[coolio444444441]

thanks soo much. you actually go slow and take time which helps me catch on!

[DevilSurferZ]

Thanks so much- really helped great explanations, and very easy to follow!!