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20-08-2015
Mathematics

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What 1/3x+9=21 answer?

Respuesta :

20-08-2015

1/3x + 9 = 21 (subtract 9 from each side)
. - 9 -9

1/3x = 12 (multiply 3 to each side)

x = 12*3

x=36

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Аноним Аноним

20-08-2015

1/3x+9=21

Subtract 9 from both sides.

1/3x+9−9=21−9

1/3x=12

Multiply both sides by 3.

3*(1/3x)=(3)*(12)

x=36

Answer Link

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