9i+15=i+20

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Solution for 9i+15=i+20 equation:


Simplifying
9i + 15 = i + 20

Reorder the terms:
15 + 9i = i + 20

Reorder the terms:
15 + 9i = 20 + i

Solving
15 + 9i = 20 + i

Solving for variable 'i'.

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

Add '-1i' to each side of the equation.
15 + 9i + -1i = 20 + i + -1i

Combine like terms: 9i + -1i = 8i
15 + 8i = 20 + i + -1i

Combine like terms: i + -1i = 0
15 + 8i = 20 + 0
15 + 8i = 20

Add '-15' to each side of the equation.
15 + -15 + 8i = 20 + -15

Combine like terms: 15 + -15 = 0
0 + 8i = 20 + -15
8i = 20 + -15

Combine like terms: 20 + -15 = 5
8i = 5

Divide each side by '8'.
i = 0.625

Simplifying
i = 0.625

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