Answer:
The answere is C
Step-by-step explanation:
180 = 96 + 2x + x + 12
180 = 96 + 3x + 12
180 = 108 + 3x
-108 -108
72 = 3x
/3 /3
24 = x
216
according to 9*mean(24)
.72x+3=0.3(2.4+15)
.72x+3=0.72+4.5=0.72+4.50
.72 x=5.22
She subtracted the coefficients instead of dividing them
Answer:6
2+2+2=6
I hope it helps :)