Answer:
Simplifying
1 + -10x = 81
Solving
1 + -10x = 81
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-1' to each side of the equation.
1 + -1 + -10x = 81 + -1
Combine like terms: 1 + -1 = 0
0 + -10x = 81 + -1
-10x = 81 + -1
Combine like terms: 81 + -1 = 80
-10x = 80
Divide each side by '-10'.
x = -8
Simplifying
x = -8
Step-by-step explanation:
Could you please add the image.
Your quotient is undefined if under the root you have a value <0
this means the value has to be >=0
so 15(x-1)>=0
(x-1)>=0
x>=1 which is option B