SOLUTION: What is the solution to 3x+3y=15. 2x+6y=22

Question 1009597: What is the solution to 3x+3y=15. 2x+6y=22

Found 2 solutions by Alan3354, addingup:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
What is the solution to 3x+3y=15. 2x+6y=22
=========
Divide the 1st eqn by 3.
Divide the 2nd eqn by 2
Subtract.
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
3x+3y=15 Multiply both sides by 2: 6x+6y= 30
2x+6y=22 Multiply both sides by -3: -6x-18y= -66
Now add those numbers:
6x+6y= 30
+
-6x-18y= -66
_ _ -12y= -36
Divide both sides by -12:
y= 3 Now let's find x, let's use the first equation:
3x+3(3)= 15
3x+9= 15
3x= 6
x= 2 Now, to find out if we have the right answer, let's use these numbers in the second equation.
Check:
2(2)+6(3)= 22
4+18= 22
22= 22 We have the correct answer
RELATED QUESTIONS
3x + 3y = 15 2x + 6y = 22 What would be the first step you take to "convert" this... (answered by rfer)
what is the solution to the abpve system of equations? 2x+3y=11... (answered by JBarnum)
What is the value of the y variable in the solution to the following system of... (answered by poopstainonmath,ewatrrr)
-2x +6y =-38 3x -4y=32 what is the x coordinate of the solution to the... (answered by MathLover1)
What would be the solution and answer for this equation? 4x+3y=26 y=3x y+5x=15... (answered by Alan3354)
Solve the system. 2x + 6y + 4z = 22 3x + 7y + 4z = 23 5x + 3y - 5z =... (answered by Edwin McCravy)
what is the expression that shows the solution to (matrix)... (answered by richwmiller)
2x-y=15 2x+3y=-13 What is the solution of the... (answered by stanbon)
What is the solution to: {{{system(4x + 5y - 6z = -15, -6x + 5y - 4z = 35, 2x + 3y -... (answered by Edwin McCravy)