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Anonymous Anonymous
  • 20-10-2014
  • Mathematics
Answered

What is the value of x in the equation 4x + 8y = 40, when y = 0.8?

Verified Answer :

mariamikayla
mariamikayla mariamikayla
  • 20-10-2014

\(4x+8y=40 \ |:4 \\\\ x+2y=10 \\\\ x+2*0.8=10 \\\\ x+1.6=10 \\\\ x=10-1.6 \\\\ \boxed{x= 8.4}\)

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