Kenya KCSE · Mathematics

Simultaneous equations

10 practice questions, each with the answer and an explanation.

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Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 10 questions

  1. Solve the simultaneous equations x + y = 5 and 2x + y = 9. What is the value of x?
  2. Solve the simultaneous equations x + y = 4 and 2x + y = 7. What is the value of x?
  3. Solve the simultaneous equations x + y = 6 and 2x + y = 8. What is the value of x?
  4. Solve the simultaneous equations x + y = 6 and 2x + y = 11. What is the value of x?
  5. Solve the simultaneous equations x + y = 15 and 2x + y = 24. What is the value of x?
  6. Solve the simultaneous equations x + y = 13 and 2x + y = 22. What is the value of x?
  7. 4 pens and 4 exercise books cost KSh 304, while 5 pens and 8 exercise books cost KSh 530. Find the cost of one exercise book.
  8. 4 pens and 4 exercise books cost KSh 328, while 7 pens and 6 exercise books cost KSh 504. Find the cost of one exercise book.
  9. 3 pens and 3 exercise books cost KSh 234, while 4 pens and 5 exercise books cost KSh 372. Find the cost of one exercise book.
  10. 5 pens and 1 exercise books cost KSh 180, while 7 pens and 4 exercise books cost KSh 356. Find the cost of one exercise book.

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