0
Best Answer
r+3+2r=21
to solver this equation you have to first simplify then solve. you have to combine same variables.
3r+3=21
-3 -3
you subtract three to get r by itself
(3r=18)/3
you divide by three to get r by itself
Answer
r=6
Wiki User
∙ 14y agoThis answer is:
Add your answer:
Earn +20 ptsQ: R plus 3 plus 2r equals - 21?
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
Related questions
What is 7-2r equals 13?
If: 7 -2r = 13 Then: r = -3
What is the answer to C over 3 plus 4 equals 11?
The answer is 21 because if 21 is divided by 3 it equals 7 plus 4 equals 11.
What is -6x plus 3 equals 21?
x = -3
3a plus 21 equals 30 what is a?
a = 3
What is 3 plus 5 plus 6 plus 3 equals?
21 Uhm, no, 17 actually...
What is the answer to the equation 2x plus 3 equals 9 x equals?
21
What is 7 plus 7 plus 4 plus 3 equals?
It's 21.
What is 3 plus 8 plus 21 plus 22 plus 36 equals?
3 + 8 + 21 + 22 + 36 = 90 Ans.// What do you mean?
What is 12 plus 3 plus 21 plus 2 plus 32?
It equals 70
7r plus 3 plus 2r - 2?
9r-1?
What is 9a plus 21 equals?
9a+21 3(3a+7)
IF 2 plus 3 equals 10 7 plus 2 equals 63 6 plus 5 equals 66 8 plus 4 equals 96 13 plus 8 equals?
273 13+8 = 21 and 13*21 = 273
Copyright ©2024 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.