Question

The coastline of the United States is 12,383 miles long Canada coastline is 113,211 miles longer than the coastline of the United States how long is the coastline of Canada

Answer 1

125,594 miles. Canada coastline (x)  - U.S. Coastline (12,383) = 113,211.
x - 12,383 = 113,211
x - 12,383 + 12,383 = 113,211 + 12,383 (by addition property of equality)
x = 113,211 + 12,383
x = 125,594
Basically, you add the two given numbers together.

Answer 2

X-12,383=113,211

X-12,383+12,383=113,211+12,383

X=113,211+12,383

X=125,594

I hope this helped