3[x-7]=6x

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Solution for 3[x-7]=6x equation:


Simplifying
3[x + -7] = 6x

Reorder the terms:
3[-7 + x] = 6x
[-7 * 3 + x * 3] = 6x
[-21 + 3x] = 6x

Solving
-21 + 3x = 6x

Solving for variable 'x'.

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

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

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

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

Add '21' to each side of the equation.
-21 + 21 + -3x = 0 + 21

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

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

Divide each side by '-3'.
x = -7

Simplifying
x = -7

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