SOLUTION: I feel a little confused about this problem x/6 + 3 =9. Am I supposed to divide the six into the x and then add the 3? The answer I was getting was 3, and then I found out tha

Question 83297: I feel a little confused about this problem
x/6 + 3 =9. Am I supposed to divide the six into the x and then add the 3? The answer I was getting was 3, and then I found out that it was wrong and I would like to know where I went wrong.
-----------------------------------------------------------------
An arithmitic student needs an average of 70 to recieve credit. She scored 82,64 and 98 on the first three exams. I am looking for a equality representing the score she must get on the last exam to recieve credit for the course.
--------------------------------------------------------------------
Is 15 a solution to the equation 8-x=7?
--------------------------------------------------------------------
Solve for x, 3x-2y=6.
I forgot how to solve a problem like this one. I just need a refresher so I can get the other ones solved.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
x/6 + 3 =9. Am I supposed to divide the six into the x and then add the 3? The answer I was getting was 3, and then I found out that it was wrong and I would like to know where I went wrong.
When you have an equation multiply thru by the least common multiple of the
denominators to cancel all the denominators
Your Problem:
Multiply thru by 6 to get:
x+18 = 54
x= 36
-----------------------------------------------------------------
An arithmitic student needs an average of 70 to recieve credit. She scored 82,64 and 98 on the first three exams. I am looking for a equality representing the score she must get on the last exam to recieve credit for the course.
Let "x" be the score she needs.
-Average is the sum of the scores divided by the number of scores:
EQUATION:
(82+64+98+x)/4 = 70
244+x = 280
x = 36 (She needs to get at least 36 on the 4th test)
===========
--------------------------------------------------------------------
Is 15 a solution to the equation 8-x=7?
Substitute and see if you get a true statement:
8-15 = 7
-7=7
15 is not a solution
--------------------------------------------------------------------
Solve for x, 3x-2y=6.
3x = 2y+6
x= (2/3)x + 3
========================
Cheers,
Stan H.

RELATED QUESTIONS
I am a little confused on how to solve this factorial for x. 1/(x+1)! < .001 The... (answered by josmiceli)

Hello, I need help with this Algebra problem please. |9x|-3>6 What I know so... (answered by Fombitz)

I am SO confused on this one, i already tried to solve this but when i checked by... (answered by ankor@dixie-net.com)

I have a problem I need to find the mean on this problem, and I know you add them up... (answered by jsmallt9)

Perform the indicated divisions. x^2 - 2x - 35 / x + 5 I am a little confused with... (answered by jim_thompson5910)

I am supposed to graph and identify the y-intercept, but no matter how hard I try I keep... (answered by ankor@dixie-net.com,dpaulin)

Okay. This is a relation (set of ordered pairs) that I have to write an equation for... (answered by stanbon)

solve by completing the square 3/8x^2 = 1/8 - x Get 0 on one side: 3/8x^2 + x - 1/8 = 0 (answered by Alan3354,Earlsdon,richwmiller)

Hey! Ok So i need some help. And i would appricate it alot. i have a major test tommorrow (answered by rfer,checkley77)