SOLUTION: I can use some help in solving this linear equation. I have tried many different solution and continue to come up with different answers based on the LCM used. Here is the question

Question 317708: I can use some help in solving this linear equation. I have tried many different solution and continue to come up with different answers based on the LCM used. Here is the question.
Solve by the addition method if possible
3*x+9*y +9
-x+5*y=-3
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve by addition:
1) 3x+9y = 9
2) -x+5y = -3 <---Multiply this equation by 3.
1)3x+9y = 9
2a)-3x+15y = -9 Add these two equations.
-----------
24y = 0 Divide both sides by 24.
y = 0 <---Now substitute this into either equation 1) or equation 2) and solve for x.
1) 3x+9(0) = 9
3x = 9
x = 3
The solution:
(3, 0)

RELATED QUESTIONS
Angela needs 20 quarts of 50% antifreeze solution in her radiator. She plans to obtain... (answered by scott8148)

Could you help me to understand the complex numbers formulas and specially their signs?... (answered by ptaylor)

A merchant blends tea that sells for $4.10 a pound with tea that sells for $2.10 a pound... (answered by ewatrrr)

I have tried simplifying a fraction of 7x^2/63x^12 and come up with 1^12/9. I cannot seem (answered by josmiceli)

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

Could I please get help with this problem. I have tried different ways to solve it and... (answered by rapaljer,Theo)

if an object is 12.9 feet tall how long in feet is it's shadow? I have tried to figure... (answered by Alan3354)

I need help with this problem I have tried and number of different ways to solve it and I (answered by longjonsilver)

Mr. Wise bought $1950 worth of stock, some at $3.00 per share and some at $4.50 per... (answered by jonvaliente)