Answer:
Step-by-step explanation:
Here you go mate
Use PEMDAS
Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction
Step 1
3(x-4)=12 Equation/Question
Step 2
3(x-4)=12 Remove parenthesis
3x-12=12
Step 3
3x-12=12 Add 12 to sides
3x=24
Step 4
3x=24 Divide sides by 3
answer
x=8
Hope this helps
Answer:
6! = 720
3! - 2! = 4
6! ÷ 3! = 120
Step-by-step explanation:
I used a calculator. ^v^
x = -3
So to figure this out we can readjust the equation to make it easier to solve
is equal to 
From here we can just subtract 9 from both sides and we get our answer!

To answer this first we need to find out how much Tiffany earns per hour and then we will multiply. lets do it:-
77.28 ÷ 4 = 19.32
$19.32 per hr
CHECK OUR WORK:-
19.32 × 4 = 77.28
we were RIGHT!!
Now lets see how much she earns in 15 hrs.
19.32 × 15 = 289.8
Tiffany earns $289.8 to work for 15 hrs.
CHECK OUR WORK:-
289.8 ÷ 15 = 19.32
we were RIGHT!!
So, Tiffany earns $289.8 to work for 15 hrs.
Hope I helped ya!!