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03-08-2016
Mathematics

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2(2x - 4) + x = 7

whats x?

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Аноним Аноним

03-08-2016

2(2x-4)+x=7
= 4x-8+x=7
= 4x+x-8=7
= 5x=7+8
= 5x=15 dividing both sides by 5
= x=15/5
= x=3
so x is 3

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