What is (2n-9)-5(-2.4n+4) ?

The solution to (2n-9)-5(-2.4n+4) is 14n-29

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simplify (2n-9)-5(-2.4n+4)

simplify

(2 n - 9) - 5 (- 2.4 n + 4)

14 n - 29

Solution steps

(2 n - 9) - 5 (- 2.4 n + 4)

Apply rule:

(a) = a

(2 n - 9) = 2 n - 9

= 2 n - 9 - 5 (- 2.4 n + 4)

Expand

- 5 (- 2.4 n + 4) : 12 n - 20

= 2 n - 9 + 12 n - 20

Group like terms

= 2 n + 12 n - 9 - 20

Add similar elements:

2 n + 12 n = 14 n

= 14 n - 9 - 20

Subtract the numbers:

- 9 - 20 = - 29

= 14 n - 29

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