SOLUTION: My daughter needs help with her algebra homework. She's working on "Solving Systems Using Elimination". Here's an example; -2x + y = -9

Question 833966: My daughter needs help with her algebra homework. She's working on "Solving Systems Using Elimination". Here's an example; -2x + y = -9
x - 3y = 3
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a)-2x + y = -9
b) x - 3y = 3
multiply b by 2
a)-2x + y = -9
b) 2x - 6y = 6
add a and b
-5y=-3
y=3/5 or .6
plug into either original a or original b
-2x+3/5=-9
-10x+3=-45
-10x=-48
x= 4 4/5 or 4.8

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