What is (2-i)+(1+i)-7i ?

The solution to (2-i)+(1+i)-7i is 3-7i

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simplify (2-i)+(1+i)-7i

simplify

(2 - i) + (1 + i) - 7 i

3 - 7 i

Solution steps

(2 - i) + (1 + i) - 7 i

Simplify

(2 - i) + (1 + i) - 7 i : 2 - i + 1 + i - 7 i

= 2 - i + 1 + i - 7 i

Group like terms

= - i + i - 7 i + 2 + 1

Add similar elements:

- i + i - 7 i = - 7 i

= - 7 i + 2 + 1

Add the numbers:

2 + 1 = 3

= - 7 i + 3

Rewrite in standard complex form:

3 - 7 i

= 3 - 7 i

x^{2} + 24 x

\frac{9}{5 i}

+ \frac{1}{2} (10 x + 20 y + 10 z)

+ 3 n^{4} - 147

43 \times 43