Which system of equations below has infinitely many solutions? y = –3x + 4 and y = –3x – 4 y = –3x + 4 and 3y = –9x + 12 y = –3x + 4 and y = -1/3x + 4 y = –3x + 4 and y = –6x + 8

y = –3x + 4 and y = –3x – 4              no solution exists
y = –3x + 4 and 3y = –9x + 12           y=4-3x
y = –3x + 4 and y = -1/3x + 4              x=0, y=4
y = –3x + 4 and y = –6x + 8               x=4/3, y=0

A) for the n row: 22+(n-1)×6therefore,b) 100-22=78that means (n-1)×6=7878÷6=1313+1=1414th row has 100 seats