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-9x - 3 - 3x = 4 + x

combine the -9x and -3x

-12x - 3 = 4 + x

subtract x from each side

-13x - 3 = 4

add 3 to each side

-13x = 7

divide both sides by -13

x = -7/13

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Q: What is -9x - 3 -3x equals 4 plus x?
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