-16a+2b=42 solve for b

b = 21 +8a

Step-by-step explanation:

We can dive both sides by 2 to get:

-8a + b = 21

Then bring at 8a to both sides to get

b = 21+8a

idk lol xd

step-by-step explanation:

ez do it yourself lazy

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.