bigfella558 bigfella558
  • 03-07-2017
  • Mathematics
contestada

What is the first step in solving this system of equations? 2x – 5y = 7 3x + 7y = –3

Respuesta :

Аноним Аноним
  • 03-07-2017
Multiplying equation by-
2x-5y=1....[*3]
-3x+7y=-3..[*2]


Adding both equations after multiplication,we get-
6x - 15y = 3
-6x + 14y =-6

-------------
y = -3
-------------
Answer Link
playerawesome1
playerawesome1 playerawesome1
  • 03-07-2017
The first step will be to multiply the equation 2x -5y =7 by -3 and multiply the equation 3x + 7y = -3 by 2.
Your new equations will be -6x + 15y = -21.
6x + 14y = -6
Answer Link

Otras preguntas

two sources of error and precaution in the centre of gravity experiment​
Compare the functions of the circulatory, respiratory, and nervous system in gas exchange
what is 1 times 1 plus 0?
Help me with this question please
Maximus is playing a game. When he rolls the dice he wins if he gets an even number and loses if he gets an odd number. Which of the following statements is FAL
Is [113 + ( −74) ]+ (−26) commutative or associative property?
Jason bought a bolt of fabric for his costume shop. He used ở of the fabric to make costumes for one client and 30 meters of the fabric for costumes for another
Body tissue mechanical properties
The nominal exchange rate is the price of one currency in terms of another currency. A nominal exchange rate specifies how many units of one country's currency
What is the role of RNA?