Solution:
The sum of -5x + 9 and 6x + 4 is x + 13.
How?
-5x + 9 + 6x + 4 = (-5x + 6x) + (9 + 4) = x + 13
(10x - 9) - (x + 13) = 10x - 9 - x - 13 = (10x - x) + (-9 - 13)
= 9x - 22
Final answer: 9x - 22
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Answers & Comments
Solution:
The sum of -5x + 9 and 6x + 4 is x + 13.
How?
-5x + 9 + 6x + 4 = (-5x + 6x) + (9 + 4) = x + 13
(10x - 9) - (x + 13) = 10x - 9 - x - 13 = (10x - x) + (-9 - 13)
= 9x - 22
Final answer: 9x - 22