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This is a two-step linear equation with a fraction, a common GED Math skill. Start by isolating the fractional term. Subtract 5 from both sides: x3=11−5=6\dfrac{x}{3} = 11 - 5 = 6. To clear the denominator, multiply both sides by 3: x=6×3=18x = 6 \times 3 = 18. Therefore, the solution is x=18x = 18 (Option C). A quick check confirms the result: 18/3+5=6+5=1118/3 + 5 = 6 + 5 = 11, which matches the original equation. Frequent errors include adding instead of subtracting (leading to 16) or multiplying the wrong side only when clearing the fraction. Best practice on the GED: 1) perform inverse operations symmetrically on both sides, 2) clear fractions by multiplying every term by the denominator, and 3) verify by substitution. Recognizing structure—term with variable plus constant equals number—helps you plan steps in order: undo addition/subtraction, then undo multiplication/division. Keeping work neat prevents sign mistakes and speeds checking under timed conditions.