jazmineatayde
jazmineatayde jazmineatayde
  • 07-09-2018
  • Mathematics
contestada

*QUICK HELP❗️*
can somebody check if these are right ?? Thanks ❤️

QUICK HELP can somebody check if these are right Thanks class=

Respuesta :

DeanR
DeanR DeanR
  • 07-09-2018

3. 5, 9, 10 and 12 are wrong.

You mostly seem to leave out some minus signs:

2(-12 + k) = 2(-12) + 2k = -24 + 2k

-5(3-x) = -15 + 5x

-6(3-d)  -18 + 6d

2(l-4) = 2l - 8

-(m-7) = -m + 7


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