SneakGeek SneakGeek
  • 15-10-2014
  • Mathematics
Answered

Find a number that is 15 more than 4 times its opposite



Answer :

luana
luana luana
  • 15-10-2014
[tex]x-\ number\\\\ x-15=4(-x)\\\\ x-15=-4x\ \ \ \ |subtract\ x\\\\ -15=-5x\ \ \ \ |divide\ by\ -5\\\\ x=3\\\\Number\ is\ equal\ to\ 3.[/tex]
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