Answer:
x=6
Step-by-step explanation:
5(x-1) + 3x = 7x + 1
Distribute
5x -5 +3x = 7x+1
Combine like terms
8x -5 = 7x+1
Subtract 7x from each side
8x- 7x -5 = 7x-7x+1
x-5 =1
Add 5 to each side
x-5+5 = 1+5
x=6
You would put a line above the numbers.25, which means that it is repeating.
Answer: x = 63
Step-by-step explanation:
15/3 = 5
3 * 21 = 63
63/15 = 21/5
I want to believe the equation is,
f(x) = -5/x
This can be written as;
f(x) = y
y = -5 x⁻¹
derivative = dy/dx = (-1)(-5)x(⁻1-1)
= 5x⁻²
Derivative at x=11,
dy/dx = 5(11)⁻²
= 5/(11²)
= 5/121
So, the derivative of f(x) = -5/x at x=11 is 5/121.