SOLUTION: the difference of four times a number and seven times the same number is 9. find the number
Algebra.Com
Question 505149: the difference of four times a number and seven times the same number is 9. find the number
Answer by Maths68(1474) (Show Source): You can put this solution on YOUR website!
Let
Number = x
Four times of x = 4*x = 4x
Seven times of x = 7*x = 7x
Difference of 7x & 4x = 7x-4x which is equal to 9
7x-4x=9
3x=9
Divide by 3 both sides of the equation
3x/3=9/3
x=3
Number is 3
Check
7x-4x=9
Plug in the value of x in above equation
7(3)-4(3) = 9
21-12=9
9=9
RELATED QUESTIONS
The difference of a four times a number and seven times the number is 9 (answered by Maths68)
the difference of four times a number and seven times the same number is 9
How do i... (answered by rfer)
The product of twice a number and four is the same as the difference of seven times the... (answered by checkley77)
Three times a number is the same as the difference of twice the number and seven. Find... (answered by user_dude2008)
three times a number is the same as the difference of twice the number and seven. find... (answered by Narsinghchauhan8960103366)
three times a number is the same as the difference of twice the number and seven. find... (answered by ankor@dixie-net.com)
Seven times the sum of twice a number and three is equal to six times the difference of... (answered by stanbon)
the difference of four times a number and eight times the same number is 12. find the... (answered by tutor_paul)
Four times the difference of a number and 3 is the same as 3 increased by four times the... (answered by mananth)