-3(9+7x)=-279

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Solution for -3(9+7x)=-279 equation: 


Simplifying
-3(9 + 7x) = -279
(9 * -3 + 7x * -3) = -279
(-27 + -21x) = -279

Solving
-27 + -21x = -279

Solving for variable 'x'.

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

Add '27' to each side of the equation.
-27 + 27 + -21x = -279 + 27

Combine like terms: -27 + 27 = 0
0 + -21x = -279 + 27
-21x = -279 + 27

Combine like terms: -279 + 27 = -252
-21x = -252

Divide each side by '-21'.
x = 12

Simplifying
x = 12

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