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Firstly, you need to consider the type of problem we are dealing with. This is actually just a tree diagram type question. note that the sweets are not replaced.
Letting n = number of swe...
1) 2x + 3y = 6
2) 3x + 2y = 5
We can either use substitution or elimination.
Using elimination:
Multiply equation 1) by 3 and multiply equation 2...
6x+4y=16, 6x+15y=-6
11y=-22
y=-2
3x=8+4=12 x=4
x=4, y=-2
First we need to multiply out the bracket
7k-21=3k-5
Then we must make sure our variable is only on one side so we need to deduct 3k from both sides
4k-21=-5
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