caeyanij caeyanij
  • 21-08-2018
  • Mathematics
contestada

Solve the following system of equations by graphing: -4x+3y=12
-2x+3y=-18

Respuesta :

briittanypaiige briittanypaiige
  • 29-08-2018
These equations are set up perfe try to use the elimination method. You can tell me one variable(y) has the same coefficient making it easy to eliminate.
-4x + 3y = 12
-(-2x + 3y = 12)
___________
-2x = 0
Thus x = 0.
You can now use this value to input into an original equation to solve for the second variable.
-2(0) + 3y = 12
3y = 12
y = 4.
Hope this helps! :)
Answer Link

Otras preguntas

Which was not a common social class of the kingdoms of sub-Saharan Africa c. eleventh century C.E.? artisans business entrepreneurs male and female imams ruling
Why did the Phoenicians develop a writing system?
How many cubes with 5-inch sides will completely fill a cube that is 10 inches on a side? (1) 50 (3) 8 (2) 25
round 47.6001 to the nearest thousandth_______.
Windmills that generate electricity are being built in coastal areas. The main benefit of these windmills is that they (1) produce finite resources
How did geography influence the history and culture of Southeast Asia and of Korea? Illustrate your answer with examples.
Why did some groups believe that the United States should colonize like the Europeans?
the sum of a number and twice is square is 36.find the numbers?
What was the Stamp Act?
1. How many tennis balls would fill your classroom? (Note- Classroom= 15m by 20m) 2. How many bananas would fill a garbage bag? Can someone plz do atleast one o