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Mathematics
3 December, 22:44
Solve the literal equation for y.
2x-4y=20
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Corbin Delgado
3 December, 22:48
0
2 (13) 13 = x
2 • 13 = 26
26-20 = 6
4 (2) = 6
y = 2
I first multiplied 4 times a number bigger than 20. It must equal an even number. I then multiplied 4 times a number that would equal six when doing 4•y. I subtracted the equation to check my answer.
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Betty Boop
3 December, 22:52
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Y = 1/2x - 5
Take the original equation:
2x - 4y = 20 - - - > subtract 2x
-4y = - 2x + 20 - - - > divide by - 4
y = 1/2x - 5
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