j-2j=21

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Solution for j-2j=21 equation: 


Simplifying
j + -2j = 21

Combine like terms: j + -2j = -1j
-1j = 21

Solving
-1j = 21

Solving for variable 'j'.

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

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

Simplifying
j = -21

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