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OpenStudy (anonymous):
Can someone help me do this step by step?
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OpenStudy (anonymous):
OpenStudy (campbell_st):
well these questions are always painful as they are very tedious. but my advice is Equation 1 - Equation 3 this will eliminate x and y and allow you to solve for z 3x + 2y + z = 7 - 3x + 2y + 3z = 1 ----------------------- -2z = 6 when you get the answer for z, substitute it into all the equations that's a start, does it make sense..?
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