Answer:
n = 6 3/7 or 45/7
Step-by-step explanation:
cross-multiply
7n = 45
n = 45/7 or 6 3/7
9 x 5 = n x 7
45 =n x 7
Switch sides n x 7=45
Divide both sides by 7: n x 7/7 = 45/7
n = 45/7
