(x+109)+(x+89)=18

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Solution for (x+109)+(x+89)=18 equation:


Simplifying
(x + 109) + (x + 89) = 18

Reorder the terms:
(109 + x) + (x + 89) = 18

Remove parenthesis around (109 + x)
109 + x + (x + 89) = 18

Reorder the terms:
109 + x + (89 + x) = 18

Remove parenthesis around (89 + x)
109 + x + 89 + x = 18

Reorder the terms:
109 + 89 + x + x = 18

Combine like terms: 109 + 89 = 198
198 + x + x = 18

Combine like terms: x + x = 2x
198 + 2x = 18

Solving
198 + 2x = 18

Solving for variable 'x'.

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

Add '-198' to each side of the equation.
198 + -198 + 2x = 18 + -198

Combine like terms: 198 + -198 = 0
0 + 2x = 18 + -198
2x = 18 + -198

Combine like terms: 18 + -198 = -180
2x = -180

Divide each side by '2'.
x = -90

Simplifying
x = -90

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