3 years ago

If DE=4x+10, EF=2x-1, and DF=9x-15, find DF. * Captionless Image

1 answer:

6 0

Answer: 63

Hopefully the work makes sense but basically you will add equation DE and EF to get 6x+11 then use that equation with DF and solve for x which will get 26/3 then plug it into DF to get 63

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