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

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

Work out 14.7 +2.63 -1.537.3×208.99×3

please help me I need to get this done by today

For school, in art, we have to collect photos of us from years ago. I’m contemplating whether or not I should use this photo. Please let me know what you think

Hal scored an 89 on an intelligence test when he was 16. Now, at age 56, he is interested in what his score would be as an adult. The score he is most likely to

Which is not a factor that an insurance company would consider before setting the cost of a homeowners insurance policy? A. Crime reports in the neighborhood B.

Mr. Akika has 30 24-cent and 33-cent stamps all told. The stamps are worth $8.91. How many of each kind of stamp does he have?

Write 17 as a fraction of 30

How do local hormone secretions function differently.

A particularly strong example of Americans' determination to build a more equal society is its ______.

Select the reason that best supports Statement 5 in the given proof.