Answer:
6x - 4y - 3
Explanation:
They are basically telling you to sum both equations. So,
(2x + 3y + 5) + (4x - 7y - 8)
= 2x + 4x + 3y - 7y + 5 - 8
= 6x - 4y - 3
2x+3y+5+4x-7y-8
2x+4x+3y-7y+5-8
6x-4y-3
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