-5,120
This is because you are multiplying each by -4, like 80x-4=-320
Answer:
Step-by-step explanation:
the top left corner
1/2+1/3=5/6
1/2+3/4=1 1/4
3/5+5/7=1 11/35
1/5+2/3=13/15
YOUR answer is true or you can formed it with two cubr
-15m -30 = -12m +6
3m = 36
m= 36/3 =12