Answer:
3^x=9^{x+5}
Step-by-step explanation:
400 divided by 10 is 40
Then you multiply 8 by 40 because you ate ate chicken nuggets
You should get 320
7(x+1)=63
7 times a number(x) +1
Plug in (3,-1) into equations to see:
-1=2-3
-1=-1 CHECK
3-2(-1)=2(3)
3+2=6
5=6 NO
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