Perfect! $$\vec{A} = -2\hat{i} - 5\hat{j}$$ and $$\vec{B} = -8\hat{i} + 3\hat{j}$$ For $$\vec{A} - \vec{B}$$, you need to subtract the x- and the y-components separately. The x-component will be $$-2-\left(-8\right) = 6$$ and the y-component will be $$-5-\left(+3\right) = -8$$.
If $$\vec{A} = 5\hat{i} + 4\hat{j}$$, $$\vec{B} = 3\hat{i} + 7\hat{j}$$ and $$\vec{C} = 2 \hat{i} + 12 \hat{j}$$, what is $$\vec{A} + \vec{B} - \vec{C}$$?
• $$10\hat{i} + 23\hat{j}$$
• $$6\hat{i} - 1\hat{j}$$
• $$-10\hat{i} + 23\hat{j}$$
• $$-6\hat{i} + 1\hat{j}$$