Answer:
The first five belong in the left most group of 1/6 = 1/3÷2
The sixth (right) one belongs in the middle group of 1/9 = 1/3÷3
Step-by-step explanation:
There no difference between x-12=y and y=x-12
We have a + b = 180 and a = 12 + b;
Then, 12 + b + b = 180;
12 + 2b = 180;
2b = 168;
b = 84;
a = 12 + 84;
a = 96;
2m: "two multiplied by m"