Identify Equation After Substitution: We have the equation f+11=5. Identify the equation after substituting f=6. Substitute 6 for f in f+11=5. Equation: 6+11=5
Substitute and Simplify: Simplify 6+11. 6+11=17
Check Solution Validity: We found: 6+11=17Is f=6 a solution to the equation f+11=5?For f=6, the equation becomes 17=5, which is not true.So, f=6 is not a solution to the equation f+11=5.