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21-10-2017
Mathematics

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Andrew has 10 more goldﬁsh than Todd. Together, they have 50. goldﬁsh. How many goldﬁsh does each boy have?

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21-10-2017

Todd has x amount of gold fish
Andrew has x + 10 amount of gold fish
They have 50 in all

x +(x+10) = 50

2x + 10 = 50

2x +10 (-10) = 50 (-10)

2x/2 = 40/2

x = 20

Todd has x amount of goldfish, so he has 20 goldfish
Andrew has (x + 10) amount of goldfish, so he has 30, because 20 + 10 = 30

hope this helps

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