R + 354 = 1321
First off I subtracted the 354 from both sides.
R + 354 - 354 = 1321 - 354
R = 967
Now I doubled checked by inserting 967 for R in the original equation.
(967) + 354 = 1321
Now I added 967 and 354.
I got an answer of 1321.
1321=1321
Therefore R = 967 is correct.
