-3(j+3)+9j=-21

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Solution for -3(j+3)+9j=-21 equation:


Simplifying
-3(j + 3) + 9j = -21

Reorder the terms:
-3(3 + j) + 9j = -21
(3 * -3 + j * -3) + 9j = -21
(-9 + -3j) + 9j = -21

Combine like terms: -3j + 9j = 6j
-9 + 6j = -21

Solving
-9 + 6j = -21

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 + 6j = -21 + 9

Combine like terms: -9 + 9 = 0
0 + 6j = -21 + 9
6j = -21 + 9

Combine like terms: -21 + 9 = -12
6j = -12

Divide each side by '6'.
j = -2

Simplifying
j = -2

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