7j-4=3j-84

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Solution for 7j-4=3j-84 equation:


Simplifying
7j + -4 = 3j + -84

Reorder the terms:
-4 + 7j = 3j + -84

Reorder the terms:
-4 + 7j = -84 + 3j

Solving
-4 + 7j = -84 + 3j

Solving for variable 'j'.

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

Add '-3j' to each side of the equation.
-4 + 7j + -3j = -84 + 3j + -3j

Combine like terms: 7j + -3j = 4j
-4 + 4j = -84 + 3j + -3j

Combine like terms: 3j + -3j = 0
-4 + 4j = -84 + 0
-4 + 4j = -84

Add '4' to each side of the equation.
-4 + 4 + 4j = -84 + 4

Combine like terms: -4 + 4 = 0
0 + 4j = -84 + 4
4j = -84 + 4

Combine like terms: -84 + 4 = -80
4j = -80

Divide each side by '4'.
j = -20

Simplifying
j = -20

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