Answer:
y = 2
Explanation:
Although it's rather obvious that we're to solve for y here, you should include those instructions with the problem.
Carrying out the indicated multiplication yields:
3y - 3 + 2y + 6 = 13.
Grouping the y terms, we get 5y on the left side; grouping the constants, we get 10 on the right side.
Dividing both sides of 5y = 10 by 5, we get the final answer, y = 2.