blancaalba1998 blancaalba1998

04-05-2017
Mathematics

contestada

square root 7x+16 +4=x

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Gamerkingjames Gamerkingjames

04-05-2017

1 Simplify 7x+16+47x+16+4 to 7x+207x+20 7x+20=x7x+20=x
2 Subtract 7x from both sides 20=x-7x20=x−7x
3 Simplify x-7xx−7x to -6x−6x
20=-6x20=−6x
4 Divide both sides by −6 -20/6=x
5 Simplify 20/6 to 10/3 -10/3=x
6 Switch sides
x=-10/3

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