20j-15j-(-15j)=-20

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Solution for 20j-15j-(-15j)=-20 equation: 


Simplifying
20j + -15j + -1(-15j) = -20

Remove parenthesis around (-15j)
20j + -15j + -1 * -15j = -20

Multiply -1 * -15
20j + -15j + 15j = -20

Combine like terms: 20j + -15j = 5j
5j + 15j = -20

Combine like terms: 5j + 15j = 20j
20j = -20

Solving
20j = -20

Solving for variable 'j'.

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

Divide each side by '20'.
j = -1

Simplifying
j = -1

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