Question

can someone explain me how to solve this problem

21 + 3x = 42

Answer 1

subtract 21 on each side, and then divide by 3:)

Answer 2

your answer would be x = 7

Answer 3

21+3x=42
-21 -21

3x=42

3x/3=21/3

x=7

Answer 4

so

21 - 21 + 3x = 42 - 21
and then you would get 0 + 3x divided by 3 = 21 divided by 3 right

Answer 5

Yes :)

Answer 6

no, you would get 3x = 21, and then divide each side by 3 to isolate the x and get x = 7 :)

Answer 7

ok that's kelly234

Answer 8

move 21 over, then its 21 since when you move you have to switch the sign. now you have 3x = 21. divide each side by 3 and then bam you get x = 7

Answer 9

do u get what i did @AustinDaMan ?

Answer 10

yes thanks

Answer 11

yw:) you should click on the "best response" by my name:)