Add the first and the third equation:
Multiply the second with 5 then add with the third:
Now we have the system:
Multiply the first equation by 11 and the second by -4, then add them:
Solving systems with 3 variables:
What is the value of y?
5x - 3z = 26
x - y - 2z = 3
-5x + 3y - z = -3
can someone please show me step by step how to solve this type of equation. I have had a few people show me but I am still not understanding the steps. Thanks.
I did show you step-by-step how to solve a problem like this in your earlier thread: http://www.mathhelpforum.com/math-he...variables.html. Can you tell me exactly which steps are you not understanding????
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