3x+4=18-x

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Solution for 3x+4=18-x equation:


Simplifying
3x + 4 = 18 + -1x

Reorder the terms:
4 + 3x = 18 + -1x

Solving
4 + 3x = 18 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
4 + 3x + x = 18 + -1x + x

Combine like terms: 3x + x = 4x
4 + 4x = 18 + -1x + x

Combine like terms: -1x + x = 0
4 + 4x = 18 + 0
4 + 4x = 18

Add '-4' to each side of the equation.
4 + -4 + 4x = 18 + -4

Combine like terms: 4 + -4 = 0
0 + 4x = 18 + -4
4x = 18 + -4

Combine like terms: 18 + -4 = 14
4x = 14

Divide each side by '4'.
x = 3.5

Simplifying
x = 3.5

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