star021506
star021506 star021506
  • 17-05-2019
  • Mathematics
contestada

7x+(2x+7)=9x+7 show work

7x2x79x7 show work class=

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jamairany
jamairany jamairany
  • 17-05-2019

it is true 9x=9x

7x+(2x+7)=9x+7

7x+2x+7=9x+7

-7. -7

7x+2x=9x

9x=9x

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