SOLUTION: the sum of a number plus four times the number is 85. What is the number?

Algebra.Com
Question 655515: the sum of a number plus four times the number is 85. What is the number?
Answer by DrBeeee(684)   (Show Source): You can put this solution on YOUR website!
LET N = THE NUMBER
THEN WE HAVE
N + 4*N = 85 OR
5*N = 85 OR
N = 85/5 OR
N = 17
IS (17 + 4*17 = 85)?
IS (17 + 68 = 85)?
IS (85 = 85)? YES
ANSWER: THE NUMBER IS 17.

RELATED QUESTIONS

six plus three times a number is four times the number. what is the... (answered by swincher4391)
three times the square of a number plus 10 is 85.Find the... (answered by rfadrogane,bubbles1301)
Four times the difference of a number and 2 is the same as 2 increased by four times the... (answered by mananth)
Three times the sum of a number plus 1 is equal to two times the sum of the number plus... (answered by stanbon)
If 4.9 plus 8.5 times a number equals the sum of the number and 55.3, what is the... (answered by solver91311)
If 8.2 plus 1.6 times a number equals the sum of the number and 20.7 , what is the... (answered by macston)
If 1.2 plus 3.1 times a number equals the sum of the number 26.7, what is the... (answered by Fombitz)
if 4.5 plus 9.5 times a number equals the sum of 30.1 and a number what is the... (answered by neatmath)
the sum of a number and four times its reciprocal is -5. what is the... (answered by sofiyacherni,bucky)