Please help!! 20 points and brainliest

2+x/7+x = 5/4
or

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

How can i differentiate this equation?

Three consecutive integers have a sum of 234. what are the three integers