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Q: What is 2x-y plus z equals 10?

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If th equestion meant: (x+y+z)^2The expansion is:(x+y+z)^2= x^2+2xy+y^2+2yz+z^2+2zx

It is not possible to give an answer. Limitations of the browser used by Answers.com means that we cannot see most symbols. There is no mathematical operator between "2xy to the power 2" and "z". Please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc.

z = -80

10

9z-5z = 30+z 3z = 30 z = 10

6z + 28 = 12z + 10 18 = 6z 3 = z

3x + 2 = 82

z remains undefined.

Can you help with this equation? Thanks. Solve for x and y and z for the following. x plus y plus z equals 9 x plus 2y plus 3z equals 23 x plus 5y plus -3z equals -7

89

The solution is (x, y, z) = (2.5, 1, 2.5).

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