Answer:
399.420
Step-by-step explanation:
1) Use the algorithm method.
4 7 . 5 5
× 8 . 4
1 3 2 2
1 9 . 0 2 0
3 6 4 4
3 8 0 . 4 0 0
3 9 9 . 4 2 0
2) Therefore,
.
399.420
2*(n-55)=3*(n+8.8)
2n-110=3n+26.4
-136.4=n
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