![36 - 3c](https://tex.z-dn.net/?f=36%20-%203c)
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Because 3c is given cookies and 36 minus baked cookies can give value of total cookies
We have 5x-9 = Y= 2x+6
⇒ 5x-9 = 2x+6
⇒ (5x-2x)+ (-9+9) = (2x-2x)+ (6+9)
⇒ 3x= 15
⇒ x=5
Plug x=5 in Y = 5x-9, we have Y= 5*(5)-9
⇒ Y=16
(x,Y)= (5,16)
Hope this would help :))
25 remainder 6 is how many times