SOLUTION: 1.) the sum of a number and twice the number is 18. what is the number?
2.) eight times a number equals 35 more than a number. what is the number?
3.) three times the sum of 13 a
Algebra.Com
Question 890188: 1.) the sum of a number and twice the number is 18. what is the number?
2.) eight times a number equals 35 more than a number. what is the number?
3.) three times the sum of 13 and a number is the same as 7 times the number decreased by 9. what is the number?
i need an equation as well as the answer please.
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
1. let x be the number, then
x +2x = 18
3x + 18
x = 6
2. let x be the number
8x = x +35
7x = 35
x = 5
3. let x be the number
3(x+13) = 7x - 9
3x +39 = 7x -9
4x = 48
x = 12
RELATED QUESTIONS
eight times a number equals 35 more than the number. find the... (answered by rfer)
1. Three times a number equals 40 more than five times the number .what is the number?... (answered by ankor@dixie-net.com)
What is eight more than three times a number equals four less than the number
(answered by stanbon)
Twice the sum of a number and eight, equals three times the sum of the number and four.... (answered by ankor@dixie-net.com)
the sum of six times a number and 9 more than the number is the same difference between... (answered by oberobic)
if six more than eight times a number equals thirty, what is the... (answered by mananth)
Please help me
Eight times the sum of a number and six is the same as 10 more than twice (answered by bmauger)
the sum of eight and twice a number is equal to 2 less than the number. whats the number. (answered by richwmiller,checkley77)
The sum of twice the square of a number and 7 times the number equals 15. What is the... (answered by stanbon,josgarithmetic,Boreal)