x-(x*.13)-57=100

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Solution for x-(x*.13)-57=100 equation:


Simplifying
x + -1(x * 0.13) + -57 = 100

Reorder the terms for easier multiplication:
x + -1(0.13x) + -57 = 100

Remove parenthesis around (0.13x)
x + -1 * 0.13x + -57 = 100

Multiply -1 * 0.13
x + -0.13x + -57 = 100

Reorder the terms:
-57 + x + -0.13x = 100

Combine like terms: x + -0.13x = 0.87x
-57 + 0.87x = 100

Solving
-57 + 0.87x = 100

Solving for variable 'x'.

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

Add '57' to each side of the equation.
-57 + 57 + 0.87x = 100 + 57

Combine like terms: -57 + 57 = 0
0 + 0.87x = 100 + 57
0.87x = 100 + 57

Combine like terms: 100 + 57 = 157
0.87x = 157

Divide each side by '0.87'.
x = 180.4597701

Simplifying
x = 180.4597701

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