18-(x+3)-2x=4+(x-3)

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Solution for 18-(x+3)-2x=4+(x-3) equation: 


Simplifying
18 + -1(x + 3) + -2x = 4 + (x + -3)

Reorder the terms:
18 + -1(3 + x) + -2x = 4 + (x + -3)
18 + (3 * -1 + x * -1) + -2x = 4 + (x + -3)
18 + (-3 + -1x) + -2x = 4 + (x + -3)

Combine like terms: 18 + -3 = 15
15 + -1x + -2x = 4 + (x + -3)

Combine like terms: -1x + -2x = -3x
15 + -3x = 4 + (x + -3)

Reorder the terms:
15 + -3x = 4 + (-3 + x)

Remove parenthesis around (-3 + x)
15 + -3x = 4 + -3 + x

Combine like terms: 4 + -3 = 1
15 + -3x = 1 + x

Solving
15 + -3x = 1 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
15 + -3x + -1x = 1 + x + -1x

Combine like terms: -3x + -1x = -4x
15 + -4x = 1 + x + -1x

Combine like terms: x + -1x = 0
15 + -4x = 1 + 0
15 + -4x = 1

Add '-15' to each side of the equation.
15 + -15 + -4x = 1 + -15

Combine like terms: 15 + -15 = 0
0 + -4x = 1 + -15
-4x = 1 + -15

Combine like terms: 1 + -15 = -14
-4x = -14

Divide each side by '-4'.
x = 3.5

Simplifying
x = 3.5

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