3x(-7)=21

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Solution for 3x(-7)=21 equation: 


Simplifying
3x(-7) = 21

Reorder the terms for easier multiplication:
3 * -7x = 21

Multiply 3 * -7
-21x = 21

Solving
-21x = 21

Solving for variable 'x'.

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

Divide each side by '-21'.
x = -1

Simplifying
x = -1

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