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Anonymous
It is: 12x+9
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-3x+9x can be simplified to 6x
9x + 32
9x+3
9x + 3x - 9x = 6 + 8x - 113x = 8x - 11-5x = -11x = 2.2 or 11/5
9x+3y = 6 3y = -9x+6 y = -3x+2 which is now in slope-intercept form