KillerSteamcar
30.06.2019 •
Mathematics
Brainliest to best answer plz explain*
Solved
Show answers
More tips
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- H Health and Medicine How to Calm Your Nerves? Expert Tips That Actually Work...
- A Animals and plants 5 Tips for Taking Care of Yews to Keep Them Green and Beautiful...
- S Sport How to wrap boxing hand wraps? Everything you need to know!...
- F Food and Cooking 10 Reasons Why You Should Avoid Giving Re-Gifts: An Informative Guide...
- F Family and Home Tender Care for Your Parquet: Is it Possible to Clean Parquet?...
- S Style and Beauty How Are Eyelash Extensions Applied? All Your Questions Answered...
- F Food and Cooking 10 Tips for Proper Sushi Consumption...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
Answers on questions: Mathematics
- M Mathematics (a) There are European cities that Betty would eventually like to visit. On her next vacation, though, she only has time to visit of the cities: one on Monday, one...
- M Mathematics I need help really fast plz ...
- H History What would be the best title of the list...
- M Mathematics Alex is working to simplify 5 × (-8) ×2...
Ответ:
0
Step-by-step explanation:
-3x +4y = 20 Multiply this equation by 2.
6x + 3y = 15
-6x + 8y = 40 Notice that -3 becomes -6, 4 becomes 8 and 20 becomes 40
Add
11y = 55 The xs have disappeared. Divide by 11
y = 55/11
y = 5
6x + 3y = 15
6x + 3*5 = 15
6x + 15 = 15
6x = 15 - 15
6x = 0
6x/6 = 0/6
x =0
Ответ: