Ineed an answer to, and what is 3/4x78% divided by 41 +113=

Is the open sentence 5x-2=3x+2 true when x=2? justify your answer.

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"