3(1-4x)=-21-6x

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Solution for 3(1-4x)=-21-6x equation:


Simplifying
3(1 + -4x) = -21 + -6x
(1 * 3 + -4x * 3) = -21 + -6x
(3 + -12x) = -21 + -6x

Solving
3 + -12x = -21 + -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.
3 + -12x + 6x = -21 + -6x + 6x

Combine like terms: -12x + 6x = -6x
3 + -6x = -21 + -6x + 6x

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

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

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

Combine like terms: -21 + -3 = -24
-6x = -24

Divide each side by '-6'.
x = 4

Simplifying
x = 4

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