18=x+(x-4)+(x-1)

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Solution for 18=x+(x-4)+(x-1) equation:


Simplifying
18 = x + (x + -4) + (x + -1)

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

Remove parenthesis around (-4 + x)
18 = x + -4 + x + (x + -1)

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

Remove parenthesis around (-1 + x)
18 = x + -4 + x + -1 + x

Reorder the terms:
18 = -4 + -1 + x + x + x

Combine like terms: -4 + -1 = -5
18 = -5 + x + x + x

Combine like terms: x + x = 2x
18 = -5 + 2x + x

Combine like terms: 2x + x = 3x
18 = -5 + 3x

Solving
18 = -5 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
18 + -3x = -5 + 3x + -3x

Combine like terms: 3x + -3x = 0
18 + -3x = -5 + 0
18 + -3x = -5

Add '-18' to each side of the equation.
18 + -18 + -3x = -5 + -18

Combine like terms: 18 + -18 = 0
0 + -3x = -5 + -18
-3x = -5 + -18

Combine like terms: -5 + -18 = -23
-3x = -23

Divide each side by '-3'.
x = 7.666666667

Simplifying
x = 7.666666667

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