Let's solve the equation step-by-step.

Given:

\[
2.3 = j - \frac{4.2}{2}
\]

### Step 1: Simplify the Division
First, divide \(4.2\) by \(2\):
\[
\frac{4.2}{2} = 2.1
\]

So the equation becomes:
\[
2.3 = j - 2.1
\]

### Step 2: Solve for \(j\)
To isolate \(j\), add \(2.1\) to both sides:
\[
2.3 + 2.1 = j
\]

\[
4.4 = j
\]

###

Learn how to solve the linear equation 2.3 = j - 4.2 / 2. This solution includes simplifying division and isolating variables, with a step-by-step approach. Suitable for students in Grades 6-8.

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