2 (<1 + L3) = L2 + L4 <1, L2, 23, 44 - ?

It looks like you are dealing with some sort of sequence or pattern represented by the letters and numbers. To work through this, let's first clarify the expression given:

The equation is \( 2(<1 + L3) = L2 + L4 \).

You have the values <1, L2, L3, and L4 associated with numbers: <1 = ?, L2 = 23, L3 = ?, and L4 = 44.

Let's break it down:

1. Substitute the known values into the equation: \[ 2(<1 + L3) = 23 + 44 \]

2. Evaluate the right-hand side: \[ 2(<1 + L3) = 67 \]

3. Divide both sides by 2 to simplify: \[ <1 + L3 = \frac{67}{2} = 33.5 \]

4. Now, rearrange to find \( <1 \): \[ <1 = 33.5 - L3 \]

At this point, it seems we have not enough information to find L3 unless it's given or we assign it a value. If you provide a specific value or additional context for L3, we can determine <1.

If no additional information is provided, please clarify or specify further instructions!