12j-9=4j+15

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Solution for 12j-9=4j+15 equation:


Simplifying
12j + -9 = 4j + 15

Reorder the terms:
-9 + 12j = 4j + 15

Reorder the terms:
-9 + 12j = 15 + 4j

Solving
-9 + 12j = 15 + 4j

Solving for variable 'j'.

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

Add '-4j' to each side of the equation.
-9 + 12j + -4j = 15 + 4j + -4j

Combine like terms: 12j + -4j = 8j
-9 + 8j = 15 + 4j + -4j

Combine like terms: 4j + -4j = 0
-9 + 8j = 15 + 0
-9 + 8j = 15

Add '9' to each side of the equation.
-9 + 9 + 8j = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 8j = 15 + 9
8j = 15 + 9

Combine like terms: 15 + 9 = 24
8j = 24

Divide each side by '8'.
j = 3

Simplifying
j = 3

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