Answer:
x percent of 5 is 1
Step-by-step explanation:
Nine is x percent of 45
x = 20
20 % of 5 = 1

so.. the left-hand-side does indeed simplify to x+7, so the equation does check out.
however, notice something, for the equation of x+7, when x = 6, we get (6) + 7 which is 13.
BUT for the rational, we get

so, even though the siimplification is correct, the rational or original expression is constrained in its domain.
Answer:
x=2
Step-by-step explanation: