-7(3x)=

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Solution for -7(3x)= equation: 


Simplifying
-7(3x) = 0

Remove parenthesis around (3x)
-7 * 3x = 0

Multiply -7 * 3
-21x = 0

Solving
-21x = 0

Solving for variable 'x'.

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

Divide each side by '-21'.
x = 0

Simplifying
x = 0

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