7-n+(7.9)×24n-54+45=

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Pierina · Answer 1 · 2021-04-28T11:10:02+0000

Answer:

188.6n-2

Explanation:

Use PEMDAS. Simplify multiplication:

$7.9*24n=189.6n\\\\7-n+189.6n-54+45$

Collect like terms:

(7-54+45)+(-n+189.6n)

Simplify first parenthesis:

$7-54=-47\\\\-47+45=-2\\\\-2+(-n+189.6n)$

Simplify second:

$-1n+189.6n=188.6n\\\\-2+188.6n$

Reorganize:

188.6n-2

:Done

7-n+(7.9)×24n-54+45=

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