3i(-7+i)=

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


Simplifying
3i(-7 + i) = 0
(-7 * 3i + i * 3i) = 0
(-21i + 3i2) = 0

Solving
-21i + 3i2 = 0

Solving for variable 'i'.

Factor out the Greatest Common Factor (GCF), '3i'.
3i(-7 + i) = 0

Ignore the factor 3.

Subproblem 1
Set the factor 'i' equal to zero and attempt to solve:

Simplifying
i = 0

Solving
i = 0

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

Simplifying
i = 0

Subproblem 2
Set the factor '(-7 + i)' equal to zero and attempt to solve:

Simplifying
-7 + i = 0

Solving
-7 + i = 0

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

Add '7' to each side of the equation.
-7 + 7 + i = 0 + 7

Combine like terms: -7 + 7 = 0
0 + i = 0 + 7
i = 0 + 7

Combine like terms: 0 + 7 = 7
i = 7

Simplifying
i = 7
Solution
i = {0, 7}

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