its D
Explanation:
x = 9
hope it helps!
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Step-by-step explanation: Add like terms first. 550 -25x = 35x + 10
Then add 25x to both sides... 550 = 60x + 10, Then subtract 10 on both sides... 540 = 60x, Finally, divide by 60 on both sides to get x = 9.
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