13/3= 4 1/3 or 4.33333333
X=10 first u do 35-5 then u do 30/3 to get 10
The best way I can explain the elimination method is, it's a method where you either add or subtract equations in order to get rid of a variable.
22.5/(x-6) + 22.5/(x+6) = 9
multiply by x-6
=> (x-6)22.5/(x-6) + (x-6)22.5/(x+6) = 9(x-6)
=> 22.5 + (x-6)22.5/(x+6) = 9(x-6)
multiply by x+6
=> (x+6)22.5 + (x+6)(x-6)22.5/(x+6) = 9(x-6)(x+6)
=> (x+6)22.5 + (x-6)22.5 = 9(x-6)(x+6)
distribute
=> 22.5x+6(22.5) + 22.5x - 6(22.5) = 9(x^2 - 36)
=> 45x = 9x^2 - 9(36)
=> 0 = 9x^2 - 45x - 9(36)
divide by 9
=> 0 = x^2 - 5x - 36
=> 0 = x^2 - 5x - 36
=> 0 = (x - 9)(x + 4)
x=9 and -4
Answer:
360 or 38
Step-by-step explanation:
Number 1 :
2 * 2 * 5 * 6 * 3
4 * 30 * 3
120 * 3 = 360
Number 2 :
5 + 3 + 2 = 10
10 × 2 = 20
6 * 3 = 18
20 + 18 = 38
I hope this helps. Let me know if this is incorrect. Thank You. Have an Awesome Day. ❤
