Answer:
no solutions
Explanation:
Given
f + 7 = f - 3
Given any value for f then f + 7 ≠ f - 3
Hence the equation has no solution
Through solving we obtain
f + 7 = f - 3 ( subtract f from both sides )
0 + 7 = - 3
7 = - 3 ← not possible, thus no solution