R+354=1,321

Explain Your answer

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.