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26-01-2017
Mathematics

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What is x?

11 + 3x = −15 − 4x

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Аноним Аноним

26-01-2017

11 + 3x = −15 − 4x
U subtract 11 from both sides 11+3x-11=-15-4x-11

Refine3x=-4x-26

Add 4x to both sides
3x+4x=-4x-26+4x

Refine7x=-26

Divide both sides by 7
7x/7 = -26/7
Refinex= -26/7

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