I need help with algebra

If x=3 and n=5, solve the follow question using the Order of Operations

x*(n+x+n/n) + xn - n = ?

PsychoBaker
Jun 4, 2017

#1**+1 **

Evaluate x (n + x + n/n) + x n - n where x = 3 and n = 5:

x (n + x + n/n) + x n - n = 3 (5 + 3 + 5/5) + 3×5 - 5

5/5 = 1:

3 (5 + 3 + 1) + 3×5 - 5

5 + 3 + 1 = 9:

3×9 + 3×5 - 5

3×9 = 27:

27 + 3×5 - 5

3×5 = 15:

27 + 15 - 5

**Answer: | 37**

Guest Jun 4, 2017

#2**+2 **

\(x\cdot(n+x+\dfrac{n}{n})+ xn - n\\ = 3\cdot(5+3+5\div 5)+3\times 5 - 5\\ =3\cdot 9 + 15 - 5\\ = 27 + 15 - 5\\ = 42 - 5\\ = 37\)

MaxWong
Jun 4, 2017

#3**+1 **

@MaxWong Thank you for explaining and simplifying the equation so I could understand it better! :D

PsychoBaker
Jun 4, 2017