3j+9=12

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Solution for 3j+9=12 equation:


Simplifying
3j + 9 = 12

Reorder the terms:
9 + 3j = 12

Solving
9 + 3j = 12

Solving for variable 'j'.

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

Add '-9' to each side of the equation.
9 + -9 + 3j = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 3j = 12 + -9
3j = 12 + -9

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

Divide each side by '3'.
j = 1

Simplifying
j = 1

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