Final answer:
To find WZX, we can substitute WZY from the equation WXY into the equation XYZ and then substitute the value of WZY in the equation YWX. Solving this equation will give us the value of WZX.
Step-by-step explanation:
In order to find the value of WZX, we need to look for a way to relate it to the given equations. We can notice that WZY is a common part of both the equations WZX and XYZ. So, let's substitute WZY from the equation WXY into the equation XYZ: WZY = WXY - WZX = 10x - 13 - WZX. Now, we can substitute the value of WZY in the equation YWX to find WZX: YWX = YWY + YWX = 7x + 39 = (WZY + WZX) + YWX = (10x - 13 - WZX) + 7x + 39. Solving this equation will give us the value of WZX.