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zapora12 zapora12
  • 13-09-2015
  • Mathematics
Answered

4(5n-7)=10n+2

9(x+3)=4x-3

Verified Answer :

TSO
TSO TSO
  • 13-09-2015

\(4(5n-7) = 10n+2\\20n-28=10n+2\\20n=10n+30\\10n=30\ =3\\\\\\9(x+3)=4x-3\\9x+27=4x-3\\9x=4x-30\\5x=-30\\x=-6\)

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