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Explanation & Answer
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You get infinite number of solutions if both equations represent the same line.
y = 2x-5
subtracting 2x from both sides
y-2x = 2x-2x-5
y-2x=-5 ---1
2y-4x = ----- --------2
Equation 1 can be multiplied by 2 to look like the second equation
2y - 4x = -10 ---------1
2y - 4x = --------- ----------2
When we compare both equations we can see that -10 goes in the box
Choice A
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