10j-(-10j)=-20

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Solution for 10j-(-10j)=-20 equation: 


Simplifying
10j + -1(-10j) = -20

Remove parenthesis around (-10j)
10j + -1 * -10j = -20

Multiply -1 * -10
10j + 10j = -20

Combine like terms: 10j + 10j = 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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