Answer:
a=2x-b
Step-by-step explanation:

Answer:
-8
Step-by-step explanation:
start at -1, move 7 more spots left you get to -8
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3.5x + 4y = 45
x=6, y= 6 is the most likely answer.
Non whole number variations would be:
x=8, y=4.25
x=4, y=7.75