two bags and four hats cost $100 in all. three bags and seven hats cost $164 in all. what is the cost of 1 hat?
1 answer:
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Answer:
Step-by-step explanation:
to use the elimination you have to make one of the numbers same
so
and you would have to change the sign so that both of the 3x could cancel out.
New system of equation
so we know the y value so now you could find the x value take one equation
you could try it with both of the equations