jngriff2018
jngriff2018 jngriff2018
  • 02-09-2016
  • Mathematics
contestada

The sum of one half and four times a number is equal to five sixths subtracted from five times the number. Find the number.

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dasetka
dasetka dasetka
  • 06-09-2016
The sum (addition) of one-half ([tex] \frac{1}{2} [/tex]) and four (4) times (multiplication) a number (n) is equal to (=) five-sixths ([tex] \frac{5}{6} [/tex]) subtracted from (subtraction) five (5) times (multiplication) the same number (n).
 
 [tex] \frac{1}{2} [/tex] + 4n =  5n - [tex] \frac{5}{6} [/tex]   Multiply both sides by 6
[tex] \frac{6}{2} [/tex] + 4n = 5n - 5   Simplify the fraction
3 + 4n = 5n - 5   Subtract 5n from both sides
3 - n = -5   Subtract 3 from both sides
-n = -8   Divide both sides by -1
n = 8
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