Solve for x: 6x + 4 = 3x + 22
Pick an answer
Correct!
Not quite. The correct answer is highlighted.
Correct answer to question 138 (Mathematics Knowledge): 6
Method
Move the x terms to one side and the numbers to the other: 6x - 3x = 22 - 4 gives 3x = 18, so x = 6.
Updated: November 2026
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