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Anonymous
15x squared plus eleven
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3x+5<x+11 3x<6 x<2
Because (x plus 3x) is 4x, and (-5 + 11) is 6.
-5 + -3x + -x + 16-4x + 11
3x+4=-11 3x=-15 x=-5
2x-5=3x+6 -5-6=3x-2x -11=x x=-11