Answer:
3.5n+6.4=42.5
-6.4=-6.4
3.5n=36.1
————— (divide)
3.5=3.5
n=36.1/3.5 or 10.314
Step-by-step explanation:
I'm confused by the question... is the question what is the first step of solving this equation?? and if it is, your answer is correct. which is subtract 6.4 for both sides.