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For X, I assume.

7X - 10 = 4X + 11

subtract 4X from each side

7X - 4X - 10 = 4X - 4X + 11

3X - 10 = 11

add 10 to each side

3X - 10 + 10 = 11 + 10

3X = 21

divide both sides by 3

X = 7

check

7(7) - 10 = 4(7) + 11

49 - 10 = 28 + 11

39 = 39

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Q: What is 7x-10 equals 4x plus 11?
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