Help me please please like right now the instructions are circled on the top of the picture and The question is under it

Answer:
n = 5
Step-by-step explanation:
7n - 4 = 31
7n = 35
n = 5
You can double check your answer by substituting n with 5.
7(5) - 4 = 31
35 - 4 = 31
31 = 31