3+6x=18-x

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Solution for 3+6x=18-x equation:


Simplifying
3 + 6x = 18 + -1x

Solving
3 + 6x = 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.
3 + 6x + x = 18 + -1x + x

Combine like terms: 6x + x = 7x
3 + 7x = 18 + -1x + x

Combine like terms: -1x + x = 0
3 + 7x = 18 + 0
3 + 7x = 18

Add '-3' to each side of the equation.
3 + -3 + 7x = 18 + -3

Combine like terms: 3 + -3 = 0
0 + 7x = 18 + -3
7x = 18 + -3

Combine like terms: 18 + -3 = 15
7x = 15

Divide each side by '7'.
x = 2.142857143

Simplifying
x = 2.142857143

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