672=12(-7x-21)

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Solution for 672=12(-7x-21) equation:


Simplifying
672 = 12(-7x + -21)

Reorder the terms:
672 = 12(-21 + -7x)
672 = (-21 * 12 + -7x * 12)
672 = (-252 + -84x)

Solving
672 = -252 + -84x

Solving for variable 'x'.

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

Add '84x' to each side of the equation.
672 + 84x = -252 + -84x + 84x

Combine like terms: -84x + 84x = 0
672 + 84x = -252 + 0
672 + 84x = -252

Add '-672' to each side of the equation.
672 + -672 + 84x = -252 + -672

Combine like terms: 672 + -672 = 0
0 + 84x = -252 + -672
84x = -252 + -672

Combine like terms: -252 + -672 = -924
84x = -924

Divide each side by '84'.
x = -11

Simplifying
x = -11

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