3+5x=18+x

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Solution for 3+5x=18+x equation:


Simplifying
3 + 5x = 18 + x

Solving
3 + 5x = 18 + 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.
3 + 5x + -1x = 18 + x + -1x

Combine like terms: 5x + -1x = 4x
3 + 4x = 18 + x + -1x

Combine like terms: x + -1x = 0
3 + 4x = 18 + 0
3 + 4x = 18

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

Combine like terms: 3 + -3 = 0
0 + 4x = 18 + -3
4x = 18 + -3

Combine like terms: 18 + -3 = 15
4x = 15

Divide each side by '4'.
x = 3.75

Simplifying
x = 3.75

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