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Lauren fragte in Science & MathematicsMathematics · vor 1 Jahrzehnt

Pre-Cal/Algebra 2 Question....?

I had Honors Algebra 2 last year. I have Honor's Pre-Cal this year. I remember doing this type problem last year but I don't remember how to do a specific set of steps to solve by substitution. This problem is a system of linear equations and we had to solve by elimination and substitution. I have it solved by elimination and the points are (69, 101, 46). Can anyone show me and explain the steps to solve by substitution? I know that you should get the same answer as when you solve by elimination. Any help at all would be wonderful!!!

These are the equations:

x-2y+3z=5

-x+3y-5z=4

2x-3z=0

Update:

We have to show our work or I would so do that haha.

2 Antworten

Relevanz
  • vor 1 Jahrzehnt
    Beste Antwort

    I don't have a calc with me...but its MATRICES!

  • ?
    Lv 4
    vor 5 Jahren

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