lysser lysser
  • 17-02-2016
  • Mathematics
contestada

20 less than eight times a number is the same as 15 more than the number

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Glooey Glooey
  • 18-02-2016
Not really because the first obe would be 8x-20 and the second one would be x+15. Hint: The "more than" and "less than" tells that number to be last.
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dahamivherath
dahamivherath dahamivherath
  • 18-02-2016
to answer this, we'll first build an equation and solve it,
x=the number

 8x-20=x+15
 -x       -x
=7x-20=15
     +20   +20
=7x=35
  ÷7   ÷7
=x=5

your answer is 5 

check,
8×5-20=20
5+15=20

answer=5

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