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28-06-2016
Mathematics

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Solve the inequality 2x < 8 - 4(2 - x)

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28-06-2016

remember you can' do anything to boht sides, but when times negative, flip sign
distributive property
a(b+c)=ab+ac

distribute the -4
-8+4x

now we have
2x<8-8+4x
2x<4x
minus 2x both sides
0<2x
therefor
0<x

answer is x>0

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