Twice a number plus 6 is twelve.

Mathematics
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Twice a number plus 6 is twelve.

A. 1/2 x + 6 = 12      B. 2x − 6 = 12     C. 2x + 6 = 12     D. 3x + 6 = 12     

Nov 2nd, 2014

x/2+6=12

x/2=12-6=6

x=2*6=12

2x-6=12

2x=126

2x=18

x=18/2=9

2x+6=12

2x=12-6=6

x=3

3x+6=12

3x=6

x=2


Nov 2nd, 2014

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Nov 2nd, 2014
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Nov 2nd, 2014
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