Explanation

To find the value of x  in the equation ( 3x + 7 = 22 ), we need to isolate ( x ).

Here are the steps:

1. Subtract 7 from both sides of the equation to get rid of the constant term on the left side:

[ 3x + 7 - 7 = 22 - 7 ]

[ 3x = 15 ]

2. Divide both sides by 3 to solve for ( x ):

[ frac{3x}{3} = frac{15}{3} ]

[ x = 5]

So, the value of  ( x ) is ( 5).