A. Common denominator of 48
Wells since there's a decimal theres a whole number so its 6 and .25 as a fraction is 1/4 so its 6 1/4
I think it is B) angle addition it is hard to read and i am sorry if i am wrong. I am so so sorry if i a wrong.
Look at the original equation. 6x9=54. all you are doing is switching numbers up. 54/9=6. or 54/9=6.
Simplify by combining like terms to
-n+4=8n-5
subtract 8n from both sides
-n+4-8n=8n-5-8n
-9n+4=-5
subtract 4 from both sides
-9n+4-4=-5-4
-9n=-9
Divide both sides by -9
-9n/-9=-9/-9
n=1
hope this helps!
