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21-04-2017
Mathematics

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which of the following represents a first step in solving the equation (x-7)2=100

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21-04-2017

will start to distribute the 2 in (x-7)
so it can be (2x-2*7)=100
(2x-14)=100
2x=100+14
2x=114
x=114/2
x=57

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