Answer:
x=28
Explanation:
Based on the given conditions, formulate: 2 * (39+x) = 134. Step 1. Expand the expression 2(39+x) =134. Step 2 rearrange the terms 28 +2x = 134. Step 3 Calculate 2x =134-78. 2x=56. Step 4 Divide both sides 56/2. Step 5 Simplify x=28.