2(2x+21)=x+13

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Solution for 2(2x+21)=x+13 equation:


Simplifying
2(2x + 21) = x + 13

Reorder the terms:
2(21 + 2x) = x + 13
(21 * 2 + 2x * 2) = x + 13
(42 + 4x) = x + 13

Reorder the terms:
42 + 4x = 13 + x

Solving
42 + 4x = 13 + 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.
42 + 4x + -1x = 13 + x + -1x

Combine like terms: 4x + -1x = 3x
42 + 3x = 13 + x + -1x

Combine like terms: x + -1x = 0
42 + 3x = 13 + 0
42 + 3x = 13

Add '-42' to each side of the equation.
42 + -42 + 3x = 13 + -42

Combine like terms: 42 + -42 = 0
0 + 3x = 13 + -42
3x = 13 + -42

Combine like terms: 13 + -42 = -29
3x = -29

Divide each side by '3'.
x = -9.666666667

Simplifying
x = -9.666666667

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