Marinavina23
Marinavina23
02-02-2016
Mathematics
contestada
7x+6y=21
X+3y=-12 what is the answer
Respuesta :
Panoyin
Panoyin
02-02-2016
7x + 6y = 21 ⇒ 7x + 6y = 21
1x + 3y = -12 ⇒ 2x + 6y = -24
5x = 45
5 5
x = 9
x + 3y = -12
9 + 3y = -12
- 9 - 9
3y = -21
3 3
y = -7
(x, y) = (9, -7)
Answer Link
VER TODAS LAS RESPUESTAS ( 15+ )
Otras preguntas
When trying to form an opinion, it is almost never useful to look at the topic from multiple perspectives. Please select the best answer from the choices provid
Capitalization, Punctuation, and Spelling Assignment Punctuating Quotations Which quotation has the correct punctuation and capitalization? My mother, a wise wo
Math Deon paid $15.60 for 19.5 centimeters of wire. Find the unit price in dollars per centimeter.
which civilization did most of rome’s knowledge in math, science, and technology come from
Product and Period Costs Identify the following costs as a product cost or a period cost for a magazine publisher: a. Sales salaries b. Paper used for the magaz
what are some new slangs?
The photo above shows a flat, open space. Which landform is shown in this photo? A. an isthmus B. a plain C. a depression D. a canyon
find the total pay for the week $12.50 per hour time and a half for sunday hours worked day must be rounded to the nearest quarter hour.
How do you know if something is living. .
Which quotations from the passage are examples of personification? Select three options. Read the passage from Pushing the Bear. Okonoluftee. Listen to that nam
