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mallyskyan6B
mallyskyan6B mallyskyan6B
  • 17-09-2016
  • Mathematics
Answered

find two numbers whose sum is 92, if the first is 4 more than 7 times the second

Verified Answer :

mynuf94 mynuf94
  • 18-09-2016

The numbers are 11 and 81

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sleepydere
sleepydere sleepydere
  • 18-09-2016

your equation is (7x+4) + x = 92. combine like terms, getting 8x + 4 = 92. then, subtract by four on each side, getting 8x = 88. to get the x alone, you have to divide by 8 on both sides, therefore, x = 11. then, plug 11 into 7x+4 to get your second number. 7x11 = 77, 77+4 = 81. 81 + 11 = 92.

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