I will send you a hopefully helpful link. https://www.ncdc.noaa.gov/sotc/national/201403
Answer:
Distribute the 5 to get 10a-15=20+a and solve
Answer:
Option B and D .....
If the provide option is correct
Or else it should be 7/9 and 0.777
mark me as brainliest ❤️
W-5=5
W= 5+5 (bringing -5 to the other side, it becomes +5)
At last, W=10.