x+(x-1)+(x+5)=40

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Solution for x+(x-1)+(x+5)=40 equation:


Simplifying
x + (x + -1) + (x + 5) = 40

Reorder the terms:
x + (-1 + x) + (x + 5) = 40

Remove parenthesis around (-1 + x)
x + -1 + x + (x + 5) = 40

Reorder the terms:
x + -1 + x + (5 + x) = 40

Remove parenthesis around (5 + x)
x + -1 + x + 5 + x = 40

Reorder the terms:
-1 + 5 + x + x + x = 40

Combine like terms: -1 + 5 = 4
4 + x + x + x = 40

Combine like terms: x + x = 2x
4 + 2x + x = 40

Combine like terms: 2x + x = 3x
4 + 3x = 40

Solving
4 + 3x = 40

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 3x = 40 + -4

Combine like terms: 4 + -4 = 0
0 + 3x = 40 + -4
3x = 40 + -4

Combine like terms: 40 + -4 = 36
3x = 36

Divide each side by '3'.
x = 12

Simplifying
x = 12

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