3x+13=2(2x+9)

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Solution for 3x+13=2(2x+9) equation:


Simplifying
3x + 13 = 2(2x + 9)

Reorder the terms:
13 + 3x = 2(2x + 9)

Reorder the terms:
13 + 3x = 2(9 + 2x)
13 + 3x = (9 * 2 + 2x * 2)
13 + 3x = (18 + 4x)

Solving
13 + 3x = 18 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
13 + 3x + -4x = 18 + 4x + -4x

Combine like terms: 3x + -4x = -1x
13 + -1x = 18 + 4x + -4x

Combine like terms: 4x + -4x = 0
13 + -1x = 18 + 0
13 + -1x = 18

Add '-13' to each side of the equation.
13 + -13 + -1x = 18 + -13

Combine like terms: 13 + -13 = 0
0 + -1x = 18 + -13
-1x = 18 + -13

Combine like terms: 18 + -13 = 5
-1x = 5

Divide each side by '-1'.
x = -5

Simplifying
x = -5

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