The error is in the second step they subtracted 3 from both sides but it was a 3x, which you can not do.
Correction.
9x+18+3x=1
12x+18=1
12x=-17
x=-17/12
Answer:
a
Step-by-step explanation:
it won't be 5
nor 60
and it won't be 15
X=24 ........................
Each bullet would cost 100/80 = $1.25 if 100 bullets cost $80.
Answer:

Step-by-step explanation:
<u>To figure this question out, you must follow the rule:</u>
Parenthesis
Exponent
Multiply
Divide
Addition
Subtraction
As you can see, the first operation in PEMDAS is Parenthesis.
Meaning the first thing you do is the numbers in parenthesis