-1+9(n+8)=143

Solution for -1+9(n+8)=143 equation:

Simplifying
-1 + 9(n + 8) = 143

Reorder the terms:
-1 + 9(8 + n) = 143
-1 + (8 * 9 + n * 9) = 143
-1 + (72 + 9n) = 143

Combine like terms: -1 + 72 = 71
71 + 9n = 143

Solving
71 + 9n = 143

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '-71' to each side of the equation.
71 + -71 + 9n = 143 + -71

Combine like terms: 71 + -71 = 0
0 + 9n = 143 + -71
9n = 143 + -71

Combine like terms: 143 + -71 = 72
9n = 72

Divide each side by '9'.
n = 8

Simplifying
n = 8