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Elimination method using Addition and Subtraction4x-2y=-1 and -4x+4y=-2

User Dhpiggott
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1 Answer

5 votes

Answer:

(-1,-3/2)

Explanation:

4x-2y=-1

-4x+4y=-2

Add these two equations together to elimianate x

4x-2y=-1

-4x+4y=-2

---------------

2y = -3

Divide by 2

2y/2 =-3/2

y = -1.5

Now we need to find x

4x-2y =-1

4x -2(-1.5) = -1

4x +3 = -1

Subtract 3 from each side

4x+3-3 =-1-3

4x= -4

x=-1

User Magius
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