Question

How many shirts do they have altogether

Lee has 7x - 12 shirts and Bruce has
11x + 3 shirts. How many shirts do they
have altogether?

Answer 1

the answer is..
18x - 9
explanation-

11x + 3
7x - 12 (combine like terms)

combine the x’s
11x + 7x = 18x

combine the other numbers!
-12 + 3 = -9

put them together (bc you can’t further any math they are different)
18x - 9

Answer 2

18x - 9

Explanation:

`(7x - 12) + (11x + 3)\\7x - 12 + 11x + 3\\18x - 9`