Question 351402
{{{(5-7i)-(-7+6i)}}} Start with the given expression.



{{{5-7i+7-6i}}} Distribute the negative.



{{{(5+7)+(-7i-6i)}}} Group like terms.



{{{12-13i}}} Combine like terms.



So {{{(5-7i)-(-7+6i)=12-13i}}}



So the expression is now in standard form {{{a+bi}}} where {{{a=12}}} and {{{b=-13}}}



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