kyrincox
kyrincox kyrincox
  • 14-10-2021
  • Mathematics
contestada

what should be the first step in adding these equation to eliminate y 12x - 2y = -1 + 4x + 6y =-4

Respuesta :

mhanifa
mhanifa mhanifa
  • 14-10-2021

Answer:

See below

Step-by-step explanation:

Assumed you need to solve the system:

  • 12x - 2y = - 1
  • 4x + 6y = - 4

In order to solve this by elimination, triple the first equation and add the second one.

It will make the coefficients of y same with opposite signs:

  • -6y and 6y

When added together these cancel, leaving x as the only variable.

Answer Link

Otras preguntas

Which is not a source of bias?A.accurate records B.equipment choice C.funding source D.hypothesis formation
How did Charlemagne’s relationship with the Catholic Church benefit both parties?
The ratio of the number of people who own a smartphone to the number of people who own a flip phone is 4:3. If 500 more people own a smartphone than a flip pho
Plz help with exponents questions
Please help! The oak tree outside Omar's house grew 3 feet in 6 months. You may assume the tree grows at a constant rate. How many meters will the tree grow in
write an equation with more than three steps where x=3.5
How had the townspeople of Gettysburg originally intended to pay for the burial of so many soldiers? a. The townspeople were going to pay for the burials thems
Some Progressive Era reformers became particularly concerned with the extent to which alcohol was abused after seeing the effects that alcoholism had. These Pro
how many time does 7 go into 117
Which method separate modern historians from ancient Greek historian's