Answer:
13
Step-by-step explanation:
2(x-1)+8=4x-20
distribute 2
2x-2+8=4x-20
2x+6=4x-20
subtract 2x from both sides
6=2x-20
add 20 to both sides
26=2x
divide both sides by 2
x=13
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Answer:
yes it is
Step-by-step explanation:

Answer:
I do not know the answer but I think it is (1,0) x (-3,4)
Step-by-step explanation:
The answers are m=2 and b=1