Question

solve the system by using elimination or elimination with multiplication. Write the solution as an ordered pair. (x'y)
a-b=-5
a+2b=1

Answer 1

use same approach as above to get one constant as negative so that it can cancel out
a - b = -5 and -1(a + 2b = 1)
a-b=-5
-a-2b=-1
add them together--> -3b=-6, div both sides by -3, so b=2
plug b back into the 1st equation, so a-2=-5, a=-3
so (a,b) = (-3,2)

Answer 2

hope that helps u!

Answer 3

thanks

Answer 4

ur welcome!

Answer 5

a=-3 and b=2