priyamathoor priyamathoor
  • 19-03-2017
  • Mathematics
contestada

a+b= -10
2a+b=-33
what is the value of b in the system of equations shown above

Respuesta :

duskowl45
duskowl45 duskowl45
  • 19-03-2017
Simplest method: elimination.
Subtract the first equation from the second one.

(2a+b=-33)-(a+b=-10) gets you to a=-23.

Now plug that in for a and solve.

-23 +b=-10

b=13
Answer Link

Otras preguntas

The height (in meters) of a projectile shot vertically upward from a point 2m above ground level with an initial velocity of 24.5m/s is h=2+24.5t-4.9t^2 after t
33 is 90% of what number
If f(x) = │(x² – 50)│, what is the value of f(-5) ?
What are the factors of 5000 that add up to 20?
what is polygenic inheritance
20 is what percent of 52
how do u say "it is spring" in spanish
What does she completely lost her head mean ????
If f(x) = │(x² – 50)│, what is the value of f(-5) ?
Lucy was playing a card with two friends. They were playing with a deck of 21 cards. Lucy dealt 1/3 of the deck to each person. How many cards did lucy get?(for