57x-23(4+(-x-(5)))+21=99

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Solution for 57x-23(4+(-x-(5)))+21=99 equation:


Simplifying
57x + -23(4 + (-1x + -1(5))) + 21 = 99

Multiply -1 * 5
57x + -23(4 + (-1x + -5)) + 21 = 99

Reorder the terms:
57x + -23(4 + (-5 + -1x)) + 21 = 99

Remove parenthesis around (-5 + -1x)
57x + -23(4 + -5 + -1x) + 21 = 99

Combine like terms: 4 + -5 = -1
57x + -23(-1 + -1x) + 21 = 99
57x + (-1 * -23 + -1x * -23) + 21 = 99
57x + (23 + 23x) + 21 = 99

Reorder the terms:
23 + 21 + 57x + 23x = 99

Combine like terms: 23 + 21 = 44
44 + 57x + 23x = 99

Combine like terms: 57x + 23x = 80x
44 + 80x = 99

Solving
44 + 80x = 99

Solving for variable 'x'.

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

Add '-44' to each side of the equation.
44 + -44 + 80x = 99 + -44

Combine like terms: 44 + -44 = 0
0 + 80x = 99 + -44
80x = 99 + -44

Combine like terms: 99 + -44 = 55
80x = 55

Divide each side by '80'.
x = 0.6875

Simplifying
x = 0.6875

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