aviferrel07 aviferrel07
  • 19-08-2020
  • Mathematics
contestada

Please Help! Three times the quantity of a number increased by 7 is equal to the same number decreased by 15

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melina03 melina03
  • 19-08-2020
I guess it's x=-11
3x+7=x-15
3x-x=-15-7
2x=-22
X=-11
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