A bus had 3x+2y-4z passengers. At a certain stoppage , 7x+4y+6z passengers stepped down and 2x-3y+5z passengers boarded the bus. How many passengers were in the bus after that?
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Step-by-step explanation:
44-x+y=50
y=2x
Substituting
44-x+2x=50
44+x=50
x=50–44
x=6
y=2x
y=2(6)
y=12
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