14 minus a number equals the same number plus 8

A) x= 4 b) x=5 C) x=7 D) x=3

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14