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Eric Underwood
Mathematics
30 November, 13:40
Substituting x-4=y and - 5y+8x=29
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Mara Horton
30 November, 13:49
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-5 (x-4) + 8x=29
-5x+20+8x=29
3x+20=29
3x=9
X=3
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Marcelo Burton
30 November, 13:57
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The answer is x=3. Work shown in the photo above!
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