If 15 t-shirts were sold and 1/5 were grey,
then 4/5 of the shirts were white
Now, 4/5 of 15 = 12
∴ of the shirts sold, 12 were white
2+2 will equal 4 because if you get two pencils and 2 more pencils it will equal 4
The negative outside of the parenthesis is distributed to the negative five, which makes the answer a positive five.
