Well I got this: 2c+7=9+6-7c+2c 2c+7=15-9c 11c+7=15 (add 9c) 11c=8 ( Subtract 7) 11---11 ( Divide 11) C=0.72
12a + 6b + 6c = 6(2a + b + c)
15 plus -3 equals 12 12 divided by -6 equals -2
-9
No! It equals 15, but 9-6=3.
8 plus 15 = 23
-9
Yes, 9+6 is 15.
-3.5. 2c would turn into -1.5 and seven wold turn to 3.5. add the two together and you get 2. 2+6=8 and you have your answer.
-3
9
it equals 15