-3j+8j-21=7j+7

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Solution for -3j+8j-21=7j+7 equation:


Simplifying
-3j + 8j + -21 = 7j + 7

Reorder the terms:
-21 + -3j + 8j = 7j + 7

Combine like terms: -3j + 8j = 5j
-21 + 5j = 7j + 7

Reorder the terms:
-21 + 5j = 7 + 7j

Solving
-21 + 5j = 7 + 7j

Solving for variable 'j'.

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

Add '-7j' to each side of the equation.
-21 + 5j + -7j = 7 + 7j + -7j

Combine like terms: 5j + -7j = -2j
-21 + -2j = 7 + 7j + -7j

Combine like terms: 7j + -7j = 0
-21 + -2j = 7 + 0
-21 + -2j = 7

Add '21' to each side of the equation.
-21 + 21 + -2j = 7 + 21

Combine like terms: -21 + 21 = 0
0 + -2j = 7 + 21
-2j = 7 + 21

Combine like terms: 7 + 21 = 28
-2j = 28

Divide each side by '-2'.
j = -14

Simplifying
j = -14

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