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Find the solution of system of equation y= x-4 y=4x+2

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

Write an equation for the function that includes the points (2,100)and (3,100)