What is the answer to this math problem: 12 5/6x – 14x + 1/6x
The Correct Answer and Explanation is:
Final Answer:
The simplified result of the expression 12 5/6x – 14x + 1/6x is –1/6x
Step-by-Step Explanation:
We are given the algebraic expression: 12 5/6x – 14x + 1/6x
Step 1: Convert the mixed number to an improper fraction
12 5/6 is a mixed number. To simplify the expression, convert it to an improper fraction: 1256=12×6+56=77612 \frac{5}{6} = \frac{12 \times 6 + 5}{6} = \frac{77}{6}
So, the expression becomes: 776x−14x+16x\frac{77}{6}x – 14x + \frac{1}{6}x
Step 2: Combine like terms
All terms contain x, so we can factor x and combine the coefficients: (776−14+16)x\left(\frac{77}{6} – 14 + \frac{1}{6}\right)x
So the entire expression simplifies to: (−1)x=−x(-1)x = -x
But let’s double-check with fractions for clarity: (776+16−14)x=(786−14)x=(13−14)x=−1x\left(\frac{77}{6} + \frac{1}{6} – 14\right)x = \left(\frac{78}{6} – 14\right)x = \left(13 – 14\right)x = -1x
Or, expressed as a fraction: −11x=−x\frac{-1}{1}x = -x
To express it using a fractional coefficient, we can write: −11x=−16x(Wait! This suggests an error. Let’s go back.)- \frac{1}{1}x = -\frac{1}{6}x \quad \text{(Wait! This suggests an error. Let’s go back.)}
Wait — let’s fix that. The error is in the assumption that: 13−14=−1613 – 14 = -\frac{1}{6}
This problem mixes fractions, whole numbers, and algebra. The key is aligning like terms and using a common denominator. Mixed numbers like 12 5/6 can trick you unless properly converted. After combining all like terms and simplifying carefully, we find that all the parts lead to just –x.