x+(x+18)=-84

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Solution for x+(x+18)=-84 equation:


Simplifying
x + (x + 18) = -84

Reorder the terms:
x + (18 + x) = -84

Remove parenthesis around (18 + x)
x + 18 + x = -84

Reorder the terms:
18 + x + x = -84

Combine like terms: x + x = 2x
18 + 2x = -84

Solving
18 + 2x = -84

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 = -84 + -18

Combine like terms: 18 + -18 = 0
0 + 2x = -84 + -18
2x = -84 + -18

Combine like terms: -84 + -18 = -102
2x = -102

Divide each side by '2'.
x = -51

Simplifying
x = -51

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