3x+13=(x+9)

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Solution for 3x+13=(x+9) equation:


Simplifying
3x + 13 = (x + 9)

Reorder the terms:
13 + 3x = (x + 9)

Reorder the terms:
13 + 3x = (9 + x)

Remove parenthesis around (9 + x)
13 + 3x = 9 + x

Solving
13 + 3x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
13 + 3x + -1x = 9 + x + -1x

Combine like terms: 3x + -1x = 2x
13 + 2x = 9 + x + -1x

Combine like terms: x + -1x = 0
13 + 2x = 9 + 0
13 + 2x = 9

Add '-13' to each side of the equation.
13 + -13 + 2x = 9 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 9 + -13
2x = 9 + -13

Combine like terms: 9 + -13 = -4
2x = -4

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

Simplifying
x = -2

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