Question

What is the solution to this system of equations?
3x + 2y = 10
2x + 4y = 4
0 (4,-1)
O (4,1)
O (1,2)
O (-4,3)

Answer 1

You can use elimination for this one so you can say

-2(3x+2y=10)
+2x+4y=4

So you have

-6x-4y=-20
+2x+4y=4

So you have

-4x=16

So x=-4

And then you can plug x into any one of the equations and solve for y

2(-4)+4y=4

-8+4y=4

Add 8 on both sides to get

4y=12

y=3

So in ordered pair form your answer is (-4,3)

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