2(3-x)=21+x

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Solution for 2(3-x)=21+x equation:


Simplifying
2(3 + -1x) = 21 + x
(3 * 2 + -1x * 2) = 21 + x
(6 + -2x) = 21 + x

Solving
6 + -2x = 21 + 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.
6 + -2x + -1x = 21 + x + -1x

Combine like terms: -2x + -1x = -3x
6 + -3x = 21 + x + -1x

Combine like terms: x + -1x = 0
6 + -3x = 21 + 0
6 + -3x = 21

Add '-6' to each side of the equation.
6 + -6 + -3x = 21 + -6

Combine like terms: 6 + -6 = 0
0 + -3x = 21 + -6
-3x = 21 + -6

Combine like terms: 21 + -6 = 15
-3x = 15

Divide each side by '-3'.
x = -5

Simplifying
x = -5

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