3x+(18-x)=3

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


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

Remove parenthesis around (18 + -1x)
3x + 18 + -1x = 3

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

Combine like terms: 3x + -1x = 2x
18 + 2x = 3

Solving
18 + 2x = 3

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 2x = 3 + -18

Combine like terms: 18 + -18 = 0
0 + 2x = 3 + -18
2x = 3 + -18

Combine like terms: 3 + -18 = -15
2x = -15

Divide each side by '2'.
x = -7.5

Simplifying
x = -7.5

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