(2i+9j)+(7i-3j)=

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Solution for (2i+9j)+(7i-3j)= equation:


Simplifying
(2i + 9j) + (7i + -3j) = 0

Remove parenthesis around (2i + 9j)
2i + 9j + (7i + -3j) = 0

Remove parenthesis around (7i + -3j)
2i + 9j + 7i + -3j = 0

Reorder the terms:
2i + 7i + 9j + -3j = 0

Combine like terms: 2i + 7i = 9i
9i + 9j + -3j = 0

Combine like terms: 9j + -3j = 6j
9i + 6j = 0

Solving
9i + 6j = 0

Solving for variable 'i'.

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

Add '-6j' to each side of the equation.
9i + 6j + -6j = 0 + -6j

Combine like terms: 6j + -6j = 0
9i + 0 = 0 + -6j
9i = 0 + -6j
Remove the zero:
9i = -6j

Divide each side by '9'.
i = -0.6666666667j

Simplifying
i = -0.6666666667j

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