Add: (2x 2 + 7x + 5); (3x+9); (3x2 -4x -3).
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ANSWER======== 11X+ 15
Step-by-step explanation:
(2x+7x +5+2) + 3x +9 + (3x -4x +2-3)
9x +7 +3x+9 -x -1
9x +3x -x +7 +9 -1
11x + 15 .
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