If stacy has 20 apples and mark takes away 10 then matthews gives stacey 20 more apples apple's the stacy have in all

Look at attachment. has all info needed. need

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

What is the solution for the following system of equations? use any method to solve. 2x + 8y = 4 x = -3y + 5 question 4 options: x = 14, y= -3 x = 2, y = -3 x = -3, y = -3 x = 12, y = 5