2x+(18+x)=15

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


Simplifying
2x + (18 + x) = 15

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

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

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

Solving
18 + 3x = 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 + 3x = 15 + -18

Combine like terms: 18 + -18 = 0
0 + 3x = 15 + -18
3x = 15 + -18

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

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

Simplifying
x = -1

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