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label Algebra
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schedule 0 Hours
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A student solves the system of equations given below. In which line is an error first made?

Line 1  2x ­ y = 6 

           - ­2x + y = ­10 

Line 2    0 = ­4 

Line 3  0 ≠-4 so there is no solution

Jan 13th, 2015

2x-y=6

-2x+y=10

Adding

0=16

In line 2 an error is made. Right hand side must be 16 since we are adding the equations.

Jan 13th, 2015

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Jan 13th, 2015
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Jan 13th, 2015
Jun 28th, 2017
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