Mathematics, 26.06.2020 15:01 krazziekidd2p845ri

19. Once the subtraction is executed, how many 'x's' are
there?
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$( {5x}^{2} + x - 1) - ( - {4x}^{2} - 6x + 7)$

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19. Once the subtraction is executed, how many 'x's' are
there?
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