Question

What ordered pairs are a solution to the equations

3x-5y=4
-5x+4y=2

(-7,0)
(6,8)
(3,1)
(-2,-2)

Answer 1

x=-2, y=-2. (-2, -2)

Explanation:

3x-5y=4

-5x+4y=2

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5(3x-5y)=5(4)

3(-5x+4y)=3(2)

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15x-25y=20

-15x+12y=6

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-13y=26

y=26/-13

y=-2

3x-5(-2)=4

3x+10=4

3x=4-10

3x=-6

x=-6/3

x=-2

x=-2, y=-2.