sierrraannn838 sierrraannn838
  • 12-10-2017
  • Mathematics
contestada

If 9 is added to twice a number and this sum is multiplied by 2​, the result is the same as if the number is multiplied by negative −3 and 4 is added to the product. what is the​ number?

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ejelonubenedict
ejelonubenedict ejelonubenedict
  • 14-10-2017
let the number be x
(9+2x)×2= (-3x)+4
18+4x=-3x+4
4x+3x=4-18
7x=-14
x=-2
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