6j+7=21-j

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Solution for 6j+7=21-j equation:


Simplifying
6j + 7 = 21 + -1j

Reorder the terms:
7 + 6j = 21 + -1j

Solving
7 + 6j = 21 + -1j

Solving for variable 'j'.

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

Add 'j' to each side of the equation.
7 + 6j + j = 21 + -1j + j

Combine like terms: 6j + j = 7j
7 + 7j = 21 + -1j + j

Combine like terms: -1j + j = 0
7 + 7j = 21 + 0
7 + 7j = 21

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

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

Combine like terms: 21 + -7 = 14
7j = 14

Divide each side by '7'.
j = 2

Simplifying
j = 2

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