x-(x-(x-15))-(x*0.15)=40

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Solution for x-(x-(x-15))-(x*0.15)=40 equation:


Simplifying
x + -1(x + -1(x + -15)) + -1(x * 0.15) = 40

Reorder the terms:
x + -1(x + -1(-15 + x)) + -1(x * 0.15) = 40
x + -1(x + (-15 * -1 + x * -1)) + -1(x * 0.15) = 40
x + -1(x + (15 + -1x)) + -1(x * 0.15) = 40

Reorder the terms:
x + -1(15 + x + -1x) + -1(x * 0.15) = 40

Combine like terms: x + -1x = 0
x + -1(15 + 0) + -1(x * 0.15) = 40
x + -1(15) + -1(x * 0.15) = 40

Multiply -1 * 15
x + -15 + -1(x * 0.15) = 40

Reorder the terms for easier multiplication:
x + -15 + -1(0.15x) = 40

Remove parenthesis around (0.15x)
x + -15 + -1 * 0.15x = 40

Multiply -1 * 0.15
x + -15 + -0.15x = 40

Reorder the terms:
-15 + x + -0.15x = 40

Combine like terms: x + -0.15x = 0.85x
-15 + 0.85x = 40

Solving
-15 + 0.85x = 40

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 0.85x = 40 + 15

Combine like terms: -15 + 15 = 0
0 + 0.85x = 40 + 15
0.85x = 40 + 15

Combine like terms: 40 + 15 = 55
0.85x = 55

Divide each side by '0.85'.
x = 64.70588235

Simplifying
x = 64.70588235

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