Let's break down each step and provide the appropriate rational explanations for what happens in each step of the equation \( n+(n−1.5)=8 \).
Step 1: 2n−1.5=8
Rational: This step combines like terms. The equation \( n + (n - 1.5) \) simplifies to \( 2n - 1.5 \) by adding \( n \) and \( n \) together and then subtracting \( 1.5 \).
Step 2: 2n=9.5
Rational: In this step, you add \( 1.5 \) to both sides of the equation to isolate the term with \( n \). By adding \( 1.5 \) to both sides of \( 2n - 1.5 = 8 \), you obtain \( 2n = 8 + 1.5 \), which simplifies to \( 2n = 9.5 \).
Step 3: n=4.75
Rational: This step involves dividing both sides of the equation by \( 2 \) to solve for \( n \). Since \( 2n = 9.5 \), dividing both sides by \( 2 \) yields \( n = \frac{9.5}{2} = 4.75 \).
In summary:
- Step 1 explanation: Combining like terms.
- Step 2 explanation: Isolating the \( n \) term by adding \( 1.5 \) to both sides.
- Step 3 explanation: Dividing by \( 2 \) to solve for \( n \).