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

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

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