Add 7x² + 6x + 7 and 8 x + 7
8x+ 7y +4.
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Step-by-step explanation:
5x + 7x + (-6x)
5x + 7x + (-6x)= 5x + 7x -6x
5x + 7x + (-6x)= 5x + 7x -6x= 6x
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