sashacaballero sashacaballero
  • 22-09-2017
  • Mathematics
contestada

Describe and correct the error made in solving the system of equations by elimination

Describe and correct the error made in solving the system of equations by elimination class=

Respuesta :

texaschic101
texaschic101 texaschic101
  • 22-09-2017
the mistake was when she multiplied the 2nd equation by 5, she forgot to also multiply that last number 10 by 5 as well.

correction :
5x + 3y - z = 15
-x + 2y + 3z = 10...multiply by 5
---------------------
5x + 3y - z = 15
-5x + 10y + 15z = 50 (result of multiplying by 5)
--------------------add
13y + 14z = 65

Answer Link

Otras preguntas

what is 3x+3=-27  what is x
i have to analyze a paragraph then circle the verbs an underline the adjectives but um lost
what is answer to 12=4x what is x
The sum of four consecutive multiples of 5 is 230. What is the greatest of these numbers ?
what is the fraction 117/30 simplified as a mixed fraction
the length of a rectangular prism is 8height : 1surface area:250what is volume and width
When evaluating promotional claims, it is important to __________.a.do your own research c.determine if there are other possible solutions b.ask if it makes sen
6010 males did a survey and 59.7% choose vanilla how many choose chocolate
What are the Buddhist teachings?
what branch of government makes the laws