To solve the equation \( 146 + f = 225 \), follow these steps:
First, subtract 146 from both sides of the equation.
Next, simplify the equation to get the solution: f = 79.
Check the solution by substituting 79 for \( f \) and simplifying:
Substituting gives us \( 146 + 79 = 225 \). When we simplify, \( 225 = 225 \), which confirms that the solution is correct.