Question

what is the answer for (Y²+9Y-7) - (-7+11Y+Y²) ?​

Answer 1

Answer:

-2y

Step-by-step explanation:

$( {y}^{2} + 9y - 7) - ( - 7 + 11y + {y}^{2}) \\ = {y}^{2} + 9y - 7 + 7 - 11y - {y}^{2} \\ = {y}^{2} - {y}^{2} + 9y - 11y - 7 + 7 \\ = - 2y$

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