9j-3j-12=30

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Solution for 9j-3j-12=30 equation:


Simplifying
9j + -3j + -12 = 30

Reorder the terms:
-12 + 9j + -3j = 30

Combine like terms: 9j + -3j = 6j
-12 + 6j = 30

Solving
-12 + 6j = 30

Solving for variable 'j'.

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

Add '12' to each side of the equation.
-12 + 12 + 6j = 30 + 12

Combine like terms: -12 + 12 = 0
0 + 6j = 30 + 12
6j = 30 + 12

Combine like terms: 30 + 12 = 42
6j = 42

Divide each side by '6'.
j = 7

Simplifying
j = 7

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