tonyddingivan tonyddingivan

17-02-2021
Mathematics

contestada

Evaluate 5x – 2y + (7x – y) for x = 7 and y = –2.

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beautifulmind2468 beautifulmind2468

17-02-2021

Answer:

92

Step-by-step explanation:

5x - 2y + (7x - y) = 5 * 7 - 2 * (-2) + (7 * 7 - (-2)) = 35 - (-4) + (49 + 4) = 39 + 53

= 92

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