All steps that Marcie did are right, but she forgot to change sign in last step.
Consider the inequality

Then

Group the numbers:

Separate terms with x and without x in different sides:

The coefficient at x is -8 and it is negative, then dividing the inequality by -8 you have to change sign in opposite:

Answer: Marcie forgot to change sign in last step.
Get x by itself
add 16 to both sides, so 4x = 16
divide both side by 4 and x =4
Total interest= principal*interest rate*time
I=500×0.023×4
I=46
Answer:
5
Step-by-step explanation:
Sorry but grade math is this so I can have a better understanding