Can someone slove, teach and explain this equation??? ( Word problme)
The quotient of a number and 3 is the same as the difference of the number doubled and 5. What is the number?
2007-09-07 07:59:11 · 4 answers · asked by SaySay 2 in Science & Mathematics ➔ Mathematics
is means =
quotient is division
difference means subtraction
doubled => times 2
x/3 = 2x - 5 <== multiply everything by 3
x = 6x - 15 <== subtract 6x over to other side
-5x = -15 <== divide by -5
x = 3
2007-09-07 08:06:38 · answer #1 · answered by Becky M 4 · 0⤊ 0⤋
The quotient of a number and 3 ---> X/3
is the same as ---> equals
the difference of the number doubled and 5 ---> 2X - 5
X/3 = 2X - 5
Just solve for X
2007-09-07 15:08:58 · answer #2 · answered by dogsafire 7 · 0⤊ 0⤋
The quotient of a number and three...
N/3
...is the same as the difference of the number doubled and five...
2N - 5
N/3 = 2N - 5
Multiply both sides by three
N = 6N - 15
Move the 6N over to the left side
-5N = -15
Divide
N = 3
Test it out.
The quotient of the number and 3 is one.
Double three is six...minus five is one.
Check!
2007-09-07 15:06:41 · answer #3 · answered by PMP 5 · 0⤊ 0⤋
eq'n : x/3 = 2x-5
1. multiply both sides 3
2. 3x/3 = 6x-5
3. x=6x-15
4.x-6x= -15
5.-5x= -15
6. -x = -3
7. Multiply both sides by -1
8. x=3
2007-09-07 19:15:37 · answer #4 · answered by Sammy 1 · 0⤊ 0⤋