(x-1)4-1=80

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Solution for (x-1)4-1=80 equation:


Simplifying
(x + -1) * 4 + -1 = 80

Reorder the terms:
(-1 + x) * 4 + -1 = 80

Reorder the terms for easier multiplication:
4(-1 + x) + -1 = 80
(-1 * 4 + x * 4) + -1 = 80
(-4 + 4x) + -1 = 80

Reorder the terms:
-4 + -1 + 4x = 80

Combine like terms: -4 + -1 = -5
-5 + 4x = 80

Solving
-5 + 4x = 80

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 4x = 80 + 5

Combine like terms: -5 + 5 = 0
0 + 4x = 80 + 5
4x = 80 + 5

Combine like terms: 80 + 5 = 85
4x = 85

Divide each side by '4'.
x = 21.25

Simplifying
x = 21.25

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