SOLUTION: The square of a number decreased by 5 is the same as 3 more than 7 times the number. Find the number.
Algebra.Com
Question 188541: The square of a number decreased by 5 is the same as 3 more than 7 times the number. Find the number.
Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
Let x be the number.
x^2-5=7x+3
x^2-7x-8=0
(x-8)(x+1)=0
x=8 or x=-1
.
Ed
RELATED QUESTIONS
ten more than the square of a number is the same as 7 times the... (answered by algebrahouse.com)
If 6 times a number is decreased by 5, the result is 7 more than the sum of 3 times the... (answered by josmiceli,mananth)
THE SQUARE OF A NUMBER DECREASED BY 3 TIMES THE NUMBER IS 18. FIND THE... (answered by macston)
Find the 3 consecutive multiples of 5 so that the square of the third decreased by 5... (answered by ankor@dixie-net.com)
Twice a number decreased by 3 is less than 12. One more than three times the same number... (answered by stanbon)
if the sum of a number and 4 multiplied b 3, the result is the same as 5 times the number (answered by rm29924)
twelve less than a number is the same as 6, decreased by 8 times the number. find the... (answered by josgarithmetic)
Six times a number decreased by 7 is the same as four times the number increased by 3.... (answered by LinnW)
if 3 times a number is increased by 5, the result is the same as when 77 is decreased by... (answered by shweta)