3 years ago

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

1 answer:

4 0

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

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