Elimination Method

 

problem

Directions

5x+4y=6

2x+-4y=8

The objective of the elimination method is to eliminate one of the variables so that you can solve for the other variable. You can multiply an equation by a certain number so that it can be eliminated, but luckily I have made this equation easy in that you do not need to multiply any side of the equation to eliminate it.

5x+4y=6
+2x+-4y=8
7x=14

Add the two equation together to eliminate the y variable

x=2

Divide both sides by 7

5(2)+4y=6

Plug the value of x back into the original equation to solve for y.

10+4y=6

Multiply 5 by 2

4y=-4

Subtract both sides by ten.

x=2 y=-1 >>>>>(2,-1)

Divide both side by 4 and you have your y value . So now you have both your x and y values .

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