What is the answer to 9n-3(2n-1)=15 ?

The answer to 9n-3(2n-1)=15 is n=4

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9n-3(2n-1)=15

9 n - 3 (2 n - 1) = 15

n = 4

Solution steps

9 n - 3 (2 n - 1) = 15

Expand

- 3 (2 n - 1) : - 6 n + 3

9 n - 6 n + 3 = 15

Add similar elements:

9 n - 6 n = 3 n

3 n + 3 = 15

Move

3

to the right side

3 n = 12

Divide both sides by

3

n = 4

(x - 4)^{2} = 33

lo g_{3} (x - 2) < 3

\frac{2 x + 6}{x - 6} < 0

x^{2} - 10 x y + 25 y^{2}

a^{2} - 6 ab + 8 b^{2}