Final answer:
The first inverse operation step in solving for x in the equation 5x+7=34 is subtracting 7 from both sides.
Step-by-step explanation:
The first inverse operation step in solving for x in the equation 5x+7=34 would be Option 1: Subtracting 7 from both sides. To isolate the variable x, we need to get rid of the constant term, which is 7. By subtracting 7 from both sides of the equation, we can eliminate the 7 on the left side and simplify the equation to 5x = 27.