x+(x+13)2=18

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Solution for x+(x+13)2=18 equation:


Simplifying
x + (x + 13) * 2 = 18

Reorder the terms:
x + (13 + x) * 2 = 18

Reorder the terms for easier multiplication:
x + 2(13 + x) = 18
x + (13 * 2 + x * 2) = 18
x + (26 + 2x) = 18

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

Combine like terms: x + 2x = 3x
26 + 3x = 18

Solving
26 + 3x = 18

Solving for variable 'x'.

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

Add '-26' to each side of the equation.
26 + -26 + 3x = 18 + -26

Combine like terms: 26 + -26 = 0
0 + 3x = 18 + -26
3x = 18 + -26

Combine like terms: 18 + -26 = -8
3x = -8

Divide each side by '3'.
x = -2.666666667

Simplifying
x = -2.666666667

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