(x+1)2=81

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Solution for (x+1)2=81 equation:


Simplifying
(x + 1) * 2 = 81

Reorder the terms:
(1 + x) * 2 = 81

Reorder the terms for easier multiplication:
2(1 + x) = 81
(1 * 2 + x * 2) = 81
(2 + 2x) = 81

Solving
2 + 2x = 81

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 2x = 81 + -2

Combine like terms: 2 + -2 = 0
0 + 2x = 81 + -2
2x = 81 + -2

Combine like terms: 81 + -2 = 79
2x = 79

Divide each side by '2'.
x = 39.5

Simplifying
x = 39.5

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