What is the answer to (n*5)*4=(4*5)*2 ?

The answer to (n*5)*4=(4*5)*2 is n=2

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(n5)4=(45)2

(n \cdot 5) \cdot 4 = (4 \cdot 5) \cdot 2

n = 2

Solution steps

(n \cdot 5) \cdot 4 = (4 \cdot 5) \cdot 2

Remove parentheses:

(a) = a

(n \cdot 5) \cdot 4 = 4 \cdot 5 \cdot 2

Multiply the numbers:

4 \cdot 5 \cdot 2 = 40

(n \cdot 5) \cdot 4 = 40

Divide both sides by

4

5 n = 10

Divide both sides by

5

n = 2

3 (x + 9)^{2} = 36

4 - x = 3

0 = 3 t^{2} - 3

x^{4} + 3 x^{3} + 6 x^{2} + 12 x + 8

2 k^{2} + 4 k + 1 = 0