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
Explanation: