Question

from unit 6, lesson 3
the diagram can be represented by the equation 25 = 2 + 6x. explain where you can see
the 6 in the diagram.

Explanation:

The total value of the bar is 25, split into two parts: one segment labeled 2, and a group of identical segments. Counting the identical segments labeled $x$, there are 6 of them. The sum of the single 2 segment and the total of the 6 $x$ segments equals the total value 25, so the 6 comes from the 6 equal segments marked with $x$.

Answer:

The 6 in the equation $25=2+6x$ refers to the 6 identical segments in the diagram that are each labeled with $x$. These 6 segments represent the term $6x$ (the sum of 6 groups of $x$), which when added to the single segment labeled 2 gives the total value of 25 for the entire bar.