Since were trying to solve for n, you have to isolate it so you would divide both sides by 10, and that will give you n = 4
180-38= 142. So your answer would be 142 for dc.
10x8? 80. 10, 20, 30, 40, 50, 60, 70, 80
The question mark is 5. 8-5=3 and 12-5=7
