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โˆ™ 2021-03-01 15:57:32
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โˆ™ 2009-11-26 15:46:35

y = -x

12x-y = 5

Substituting:

12x--x = 5

13x = 5

x = 5/13 and y = -5/13

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Q: Y equals -x plus 12x-y equals 5 solve by substitution?
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