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System of equations with three equations and three variables

label Algebra
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schedule 0 Hours
account_balance_wallet $5

I have to use elimination to figure out this problem, I can do it with 2 equations and 2 variables but I can't understand the 3

-3x + y - z = -10

-4x + 2y +3y = -1

2x + 3y -2z = = -5

Mar 18th, 2015

Take the value of z  from 1st equation and substitute in 2nd and 3rd equation.

then you will be left with x and y variable solve them and then put it back on 1st equation you will get z.


Let me know if you understand it?

Mar 18th, 2015

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Mar 18th, 2015
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Mar 18th, 2015
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