tr0mi1tchatdoyleib tr0mi1tchatdoyleib
  • 03-02-2017
  • Mathematics
contestada

Use the formula 2x - 5y = 20 to find x y = - 6

Respuesta :

BrysonEaston15
BrysonEaston15 BrysonEaston15
  • 06-02-2017
2x-5y=20
2x-5(-6)=20
2x+30=20
     -30  -30
2x= -10
/2        /2
x=-5
I hope this helps!
Answer Link

Otras preguntas

Please help me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
the excercise goes like" there are 20 books on the lowest shelf, 18 on next one, 16 on next one etc., till the top shelf on which there is 4 books. How many bo
Where did champlain set up a fur-trading post??
Which term refers to similar structures that related species have inherited from a common ancestor? a. DNA sequences b. developmental organisms c. c. homolog
Your best friend is not getting good grades. How would you tell him or her to study (using the affirmative tú command form)?
2) Divide (8.6 x 108) by (3.2 x 103). Express your answer in scientific notation. A) .26875 x 106 B) 2.6875 x 105 C
I need help on #23! I do not get this at all. Someone please help me
The fur of a snowshoe rabbit changes to white during the winter. This change is an example _____. adaptation competition metabolism
how do i translate (7,4)
what did Father ask the clock keeper to do