What is (7+3i)-(-9+i) ?

The solution to (7+3i)-(-9+i) is 16+2i

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simplify (7+3i)-(-9+i)

simplify

(7 + 3 i) - (- 9 + i)

16 + 2 i

Solution steps

(7 + 3 i) - (- 9 + i)

Group the real part and the imaginary part of the complex number

(a + bi) - (c + d i) = (a - c) + (b - d) i

= (7 - (- 9)) + (3 - 1) i

Simplify

(7 - (- 9)) + (3 - 1) i : 16 + 2 i

= 16 + 2 i

\frac{3 a}{12 b ^{2}} - \frac{a - 4 b}{12 b ^{2}}

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\frac{x ^{2} - 3 x - 54}{x ^{2} - 9 x} \cdot \frac{2 x}{x ^{2} + 8 x + 12}