8.263-13.48= -5.217
I suggest using a calculator for math that is hard to work out in your head.
Answer:40
Step-by-step explanation:6/30
6x30=180
6x6=36
4/6=20
4+36=40
I didn't get the question whether it was 42 or 4×2
X is 30 because we can minus 60on both sides and add 3x on both sides to find the answer