Answer:
3 + 35 = 38?
Step-by-step explanation:
<span>Simplifying
x + 2x = 5 + 10
Combine like terms: x + 2x = 3x
3x = 5 + 10
Combine like terms: 5 + 10 = 15
3x = 15
Solving
3x = 15
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '3'.
x = 5
Simplifying
x = 5</span>
The answer would be H. You can immediately eliminate F and J because they do not include the $10 fee and $39 is the amount charged for one book.
2x+6y+(9x-6y)=20+24
11x=44
X=4
Y=2
I hope this helped!
To find the inverse, interchange the variables and solve for y:
f^-1 (x) = 48 + 4x
