To solve the equation 3x + 7 = 22, follow these steps:
1. Start by isolating the term with the variable (3x) on one side of the equation. To do this, subtract 7 from both sides:
3x + 7 - 7 = 22 - 7
This simplifies to:
3x = 15
2. Now, to find the value of x, you need to isolate x. Since 3x means 3 multiplied by x, you can solve for x by dividing both sides of the equation by 3:
(3x) / 3 = 15 / 3
This simplifies to:
x = 5
So, the solution to the equation 3x + 7 = 22 is x = 5.