Tags Math and Arithmetic

Animals & Plants Arts & Entertainment Auto Beauty & Health Books and Literature Business Electronics Engineering & Technology Food & Drink History Hobbies Jobs & Education Law & Government Math People & Society Science Social Studies Sports Travel & Places

0

Subjects>Math>Other Math

What is the sum of (7 plus 3i) plus (8 plus 9i)?

Anonymous

∙ 9y ago

Updated: 4/28/2022

(7 + 3i) + (8 + 9i) = (7 + 8) + (3i + 9i) = (7 + 8) + (3 + 9)i = 15 + 12i

Which can also be written as: 15 + 12i = 3(5 + 4i).

Wiki User

∙ 9y ago

Still curious? Ask our experts.

Chat with our AI personalities

Vivi

Your ride-or-die bestie who's seen you through every high and low.

Chat with Vivi

Blake

As your older brother, I've been where you are—maybe not exactly, but close enough.

Chat with Blake

Steve

Knowledge is a journey, you know? We'll get there.

Chat with Steve

Add your answer:

Earn +20 pts

Q: What is the sum of (7 plus 3i) plus (8 plus 9i)?

Write your answer...

Submit

Still have questions?

imp

Continue Learning about Other Math

Find the multiplicative inverse of 4-3i?

7

What is the sum of 7 plus 3 plus 10?

7+3+10 = 20

Sum of 8 plus 7?

15

What is positive 7 plus negative 8?

The sum of 7 and -8 is -1.

What is 7 plus the sum of a number x and 5?

7+(x+5)

Trending Questions

What digit is in the thousands column of 0.621? What kind of fraction bar did Carl use if he used four of one type to show two fifths? What 31 divided into 120? What number is six less than the number seven and eight? What is 7.2 as an improper fraction? Is 3 miles long? How much would Karen finance on her new car if she paid 20 percent down on a 14564 car? How many edges a cylinder have? What is 0.026 as a fraction? What is h-21 equals -52? What is right bisector in math? What is the answer for 3c - 4d equals 6d plus 4c? What is 639 497 rounded to the nearest tenth? What times 12 equals 108? How do you divide a circle in to fifths? When shannon has read two fifths of the bookwhat fraction will she still have left to read? Why was Copernicus theory controversial? My sister is 14 years old. My brother says that his age minus twelve is equal to my sister's age. How old is my brother? The sum of two numbers is 1457 four times minus twice the second is 8 what is the larger number? What exponents equal to 64?

Resources

Top Categories

Product

Company

Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.