Final answer:
To solve for x in the equation 3x+7=22, subtract 7 from both sides and then divide both sides by 3 to isolate x. The solution is x = 5.
Step-by-step explanation:
To solve for x in the equation 3x+7=22, we first subtract 7 from both sides to isolate the variable. This gives us 3x = 15. Next, we divide both sides by 3 to solve for x. Therefore, x = 5.