I am not sure if there is any question that predicts the answers in the best possible state that we do not feel the requirement to perform lengthy calculations and thus look for an opinion and solution. I do not consider this question a tougher one considering that some of the questions here do not remain straightforward or even the correct option. Hence, I will begin forward by examining the question, so you find it easy, and then you will come to a conclusion with ease. First, I will start by announcing the breakdown of the entire equation, so you will find it easy to perform simple concepts such as those of the middle term breaking yourself.
At first, we have the equation of 4x-3y=8, whereas the second equation is -2x+5y=10. The two equations are of the quadratic equation, and thus there will be solving of these equations in the form of a simultaneous way, and therefore you will need to place them simultaneously and then begin with the solving process. It is easier to understand that the two equations can quickly proceed when the equations are added without any multiplication and subtraction. In essence, you need to add them easily. And the resulting equation comes out as:
2x+2y=18
Now it gives a more precise and straightforward prediction of the resulting equation. All you need to do next is that you need to bring commonly the ‘2’ from the left side of the equation and then divide the term under 18 on the right side. It means further that the total equation reduces to:
x+y=9
Now, let us consider the two options that are available to us. At one option, the answer is x+y, and the next option is 9. Thus, it is evident from above that both options are correct, and therefore you will need to select the answer that says that both of them are equal.