How many solutions does the equation have? f + 7 = f - 3

no solutions

Step-by-step 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

there is no solution