What is (-1-3i)-(-10+5i) ?

The solution to (-1-3i)-(-10+5i) is 9-8i

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simplify (-1-3i)-(-10+5i)

simplify

(- 1 - 3 i) - (- 10 + 5 i)

9 - 8 i

Solution steps

(- 1 - 3 i) - (- 10 + 5 i)

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

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

= (- 1 - (- 10)) + (- 3 - 5) i

Simplify

(- 1 - (- 10)) + (- 3 - 5) i : 9 - 8 i

= 9 - 8 i

4275

30 \div \frac{3}{4}

(4 x + 3 y - 8 z) + (7 x - 8 y + 5 z)

\frac{- 32}{- 8}

(- 3) - 4