Answer :
Hello there, and thank you for posting your question here on brainly.
All you have to do is subtract 43 from both sides.
r + 43 = 21 ----> r = 23
r = 23 is your final answer.
Hope this helped!! ☺♥
All you have to do is subtract 43 from both sides.
r + 43 = 21 ----> r = 23
r = 23 is your final answer.
Hope this helped!! ☺♥