Question 1085789: 3x + 3y + z = -10
X-3y+2z = -10
8x-2y+3z = -28
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! 3x + 3y + z = -10
X -3y + 2z = -10
8x - 2y + 3z = -28
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You didn't ask a question, or make a request.
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If you want to solve for x, y & z, I would use elimination.
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Multiply the 1st eqn by 2 and subtract from the 2nd equation --> an eqn in x & y.
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Multiply the 1st eqn by 3 and subtract from the 3rd equation --> another eqn in x & y.
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Now it's 2 equations in x & y.
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