2x+(18-x)=15

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Solution for 2x+(18-x)=15 equation:


Simplifying
2x + (18 + -1x) = 15

Remove parenthesis around (18 + -1x)
2x + 18 + -1x = 15

Reorder the terms:
18 + 2x + -1x = 15

Combine like terms: 2x + -1x = 1x
18 + 1x = 15

Solving
18 + 1x = 15

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 + 1x = 15 + -18

Combine like terms: 18 + -18 = 0
0 + 1x = 15 + -18
1x = 15 + -18

Combine like terms: 15 + -18 = -3
1x = -3

Divide each side by '1'.
x = -3

Simplifying
x = -3

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