## Solving Systems of Equations With 3 Variables & Word Problems

This algebra video tutorial explains how to solve system of equations with 3 variables and with word problems. It contains two example word problems on investment and on total value.

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This channel help me get A Insyallah

You the best 👍

Thank you 😊

Thanks! This video really helped me with a question on my math final!

1.5x speed

Thank you so much for your help!

595th like

Why do you have to multiply the first equation by two and the one next to it by -1?

“A, B, and C have 2150 yen collectively. A has 120 yen more than B does. After C gives B 2/5ths of his money, B now has 220 yen more than A. How much money did A originally have?”

They say it's a problem that even middle schoolers can solve, but wow. Maybe I'm just dumb. I can't figure anything out.

(B+120) + B + C = 2150

An + (B+2/5C) + 3/5C = 2150

?

you are good bro

you're awesome!

holy fuck why does this have to be so long ……

word problems: https://braingenie.ck12.org/skills/106763

400th like

Honestly, I have never seen equation systems solved in this way. At my school we always isolate the first variable, so it can be but into the next equation, to solve the next variable so it can be put into the last: so you'll end up with an equation with only 1 variable. Therefore this is mindblowing to me. Thank you!

Very confusing based on speed and lack of proper explanation

Wow please slow it down!!!!!!! Blew my mind

~~b +~~✓b^2-2ac/2aPlease label your equations next time, it’s confusing when you dont

2x+3y=5p and y=2x+p HELP FAST PLS

I love you lol

Do some word problems using 3 variables…

Sir please strat lectures on general aptitude

Please help me sir a+b-c=-1…(1)

2a-2b+3c=8….. (2)

2a-b+2c=9….. (3)

Bro plzz help me in linear programming