3x+8=2x+21
X=?
(all working out needed)


Answer :

Answer:

x=13

Step-by-step explanation:

3x=2x+21−8

3x=2x+13

3x−2x=13

x=13

Answer:

x = 13

Step-by-step explanation:

3x + 8 = 2x + 21

x + 8 = 21

x = 13