-3x-21=-6(1-2x)

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Solution for -3x-21=-6(1-2x) equation:


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

Reorder the terms:
-21 + -3x = -6(1 + -2x)
-21 + -3x = (1 * -6 + -2x * -6)
-21 + -3x = (-6 + 12x)

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

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
-21 + -3x + -12x = -6 + 12x + -12x

Combine like terms: -3x + -12x = -15x
-21 + -15x = -6 + 12x + -12x

Combine like terms: 12x + -12x = 0
-21 + -15x = -6 + 0
-21 + -15x = -6

Add '21' to each side of the equation.
-21 + 21 + -15x = -6 + 21

Combine like terms: -21 + 21 = 0
0 + -15x = -6 + 21
-15x = -6 + 21

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

Divide each side by '-15'.
x = -1

Simplifying
x = -1

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