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Mathematics, 14.04.2020 20:29 cristinanina

Which pair of expressions blow are equivalent?

x+x+x+y+y and 3(x+y)
x+x+x+y+y+y and 3(xy)
x+x+x+y+y+y and 3x+y
x+x+x+y+y+y and x + 3y

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Which pair of expressions blow are equivalent?

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