SOLUTION: Hello, I've got a series of equations and only one of them can be usefull to find the solutions of the others. The equation is 3 x + 2 y = 189 My problem is that I can't possibl

Question 23711: Hello,
I've got a series of equations and only one of them can be usefull to find the solutions of the others.
The equation is 3 x + 2 y = 189
My problem is that I can't possibly find x nor y and thus I'm stuck with the other equations.
Can you tell me what I should look for in order to find the solutions?
Thank you
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Did you want to graph this equation? If so, then remember that any equation in the form of Ax +By = C will be a straight line, and you need only two points to determine the line. So, when the equation is in standard form like this one is, it's easiest to find the x and y-intercepts.

3x+2y =189
If x=0, then 2y = 189, so y = 189/2 = 94.5
If y = 0, then 3x=189, so x= 63

These are very large numbers, so the graph will have to be very large or maybe you should use a scale of 10. On the x and y axis, instead of counting off 1, 2, 3, etc. as we usually do, use 10, 20, 30, etc.

If you graph these points it should look like this:

R^2 at SCC

RELATED QUESTIONS
Hello everyone! I realize it is stated only one problem per submission, however, there... (answered by stanbon,edjones,richwmiller,wilft1)

For a triangle with a perimeter of 12 and an area of 7 what are the lengths of the... (answered by jim_thompson5910)

Hi! Given that x^2-14x+a=(x+b)^2 for all values of x, find the value of a and the... (answered by reviewermath,Okeke_Christian)

I experience an experiments 2 times (experiments A and B) now I want to know which one is (answered by stanbon)

Hello! I’m really stumped on this. The question says to consider the infinite geometric (answered by math_helper)

'Jim rollerbladed the first 1,600 meters in 3 minutes. How long would it take him to... (answered by stanbon)

3. I have literally hundreds of questions. I am submitting only a few for help because... (answered by nerdybill)

I am attempting to solve system of linear equations through elimination. I have an entire (answered by Edwin McCravy,ewatrrr,stanbon)

You can afford a $1300 per month mortgage payment. You've found a 30-year loan at 7%... (answered by Theo)