Description
x-2y=0
x=3y+1
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Explanation & Answer
For the elimination method, you have to eliminate a variable by adding/subtracting the two equations.
x - 2y = 0
x - 3y = 1 (I subtracted 3y from both sides to get the equations in the same format)
If you subtract equation 2 from equation 1:
x - 2y = 0
-[x-3y = 1]
(x-x) + (-2y +3y) = (0-1)
The x's cancel each other and you're left with:
y = -1
Now, you can substitute y = -1 into one of the equations to solve for x:
x - 2(-1) = 0
x + 2 = 0
x = -2
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