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X — бу + 2x = 5 2x – 3y+z = 4 3х +4y - z = -2 help on how to do it , its about substitution. ​
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X — бу + 2x = 5 2x – 3y+z = 4 3х +4y - z = -2

help on how to do it , its about substitution. ​

User Russ Clark
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Solve the following system of equations for x: 4x + 6y = 68 2x + 6y = 76  A. x = - 14 B. None of these. C. x = - 4 D. x = 14 E. x = 4
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option C is correct More
User Chris Withers
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