Х Reasoning with system
Answer two questions about Systems A and B:
System A
System B
- 4y = 1
I=1+ 4y
5 +6 = -5
5х + бу = -5
1) How can we get System B from System A?
Choose 1

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

The anwser cause i do not understand just plez