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Anonymous
4 would be the Greatest Common Factor for 4x and 8, BECAUSE, 4 will go into itslf once and into 8 twice.
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Gwyneth Loquere ∙
The GCF is 4x.
2.
8 + y = 4x8 + y - 4x = 4x - 4x 8 + y - 4x = 0 8 - 4x + y = 0
You need more than one term to find a GCF.