x-(21-2x)=6

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Solution for x-(21-2x)=6 equation:


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

Reorder the terms:
-21 + x + 2x = 6

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

Solving
-21 + 3x = 6

Solving for variable 'x'.

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

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

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

Combine like terms: 6 + 21 = 27
3x = 27

Divide each side by '3'.
x = 9

Simplifying
x = 9

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