Question: 6. (4 MARKS) Let all the letters stand for integers (from Z ), with m>1. Prove that if xymodm and zwmodm, then also x+zy+w modm

6. (4 MARKS) Let all the letters stand for integers (from

6. (4 MARKS) Let all the letters stand for integers (from Z ), with m>1. Prove that if xymodm and zwmodm, then also x+zy+w modm and xzywmodm. 7. (2 MARKS) Find all integer values x that work in the "congruenceequation" below: x8mod3. Hint. There are infinitely many values expressible by a simple formula

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