mathstudent0
mathstudent0 mathstudent0
  • 02-04-2017
  • Mathematics
contestada

5x + 2y = 8
x + y = 4
If you want to solve the system of equations by addition, which of the following could you do?

Respuesta :

Shailza Shailza
  • 02-04-2017
Multiply the equation x+y =4 by -5
The resultant would be- 
-5x -5y = -20
Adding this with 5x +2y =8
Then, the resulting would be, 
-3y = -12
∴ y=4
and x=4-4 =0
Answer Link
sassyqueensavage
sassyqueensavage sassyqueensavage
  • 16-12-2020

Answer:

ita a

Step-by-step explanation:

Answer Link

Otras preguntas

Which 2 European countries controlled the most land in Africa
Why were the numbering trials held from 1945 to 1946 ?
What is most likely to be the author’s intended use of eye rhyme in this excerpt
Which would not reduce the amount of green house gasses in the air
Need help finding this answer
Name each rayCalculation Tip: In ray "AB", A is the endpoint of the ray.
PLEASE HELP, 15 POINTS!!!!!!!!!!!!!! explain your answer, THANK YOU!!!!!!
A baker has 5 1/4 pies in her shop. She cut the pies in pieces that are each 1/8 of a whole pie. How many pieces of pie does she have?
In which case did the Supreme Court's decision allow schools to use forced bussing to ensure integration of its schools?
Expressed powers are those that are specifically granted in the Constitution. held by both the federal government and the states. considered the basis for the