what i can reflect about psychological aspects if the students is confronted with the following question

problems:
find a solution!
1. 3/x-5/y= -2
6/x-7/y= -5

2. 2x+y=11
3x-2y= -1

3. 2x2+y2=17
-5x2 +y2= -11

4. 16/(x+2)+3/(y-5)=5
-4/(x+2)-9/(y-5)=-5

i have 4 prolems that must do by student. yesterday i tried to show this problems to the studens of senior high school. i order to student to solve this exercise. when the student begin doing this exercises many comment have i remember. there are many comment from the students, such as:
1. this is to difficult
2. i cant do the exercises
3. i dont want to do this exercise
4. im dislike this problems
after knowing her comments, i try to know the cause of student not respect to this exercises. i give student some qoestion. and now i have a conclution what student's problems.
1. form of problems are "separated(pecahan)"
lets we look at number 1 and 4, we find separated form. in fact separated form is dificult to do. her opinion, if there is a separated form its axcatly difficult. students dont give positive respons if the form is separated(pecahan). there is persepsion that separated is difficult.

2. there is exponen form
lets we look at number 3 its form is exponen. student give negative responts if they find this form. same with above that there is paradigm that exponen is difficult.

my opinion about this problems:
beside the exercises like what student said, this exercise is not a good construction. we see that number 1 is separated form that dislike by students. it should be changed with nymber 2. we know number 2 is common form. so ithink number 2 is esier than number 1. i think, if we give give exercise, we must arranged the exercises in a good arranged. we must start from the esier first,and then to the next step. so the exercises is based on step by step. i think if at the student can do well at the first, student get a motivation to do to the next number.

thorndike have many law about theory of study,one of them is exercise law. he said that if we do many exercises we can get a good respons. we can succeced in study. i think exercise is important for students to increase their capacity, to increase their capability in math.
i suggest that teacher to cunstruct the exercises in good construction, so student can get motivation to solve the exercises. teacher must make a good cover for exercises. make cover like a delicious food so student interesting to eat, to do to solve the probelms. i think its being home work for teacher.

i think enough. to mr. marsigit i hope my posting get a critic so i can do better for better creater.