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OpenStudy (anonymous):
x-2y+3z=9 -x+3y+z=-2 2x-5y+5z=17 solve using elimination/substitution method
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OpenStudy (mendicant_bias):
Alright, in this problem, you can take those whole equations and multiply by certain values and then algebraically add or subtract them with one another to solve for the values of x, y, and z; is there anything in particular you are stuck on, or are you not sure how to start?
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