Question

comparison method
simultaneous equations

3x + y = 13
3y - x = 9​

Answer 1

Step-by-step explanation:

in which

x and

y are both unknown. It is very clear that this equation will hold true, i.e., be satisfied for all values of

x and

y . We can safely say that this equation has an infinite number of solutions because any pair of numbers whose difference is 2 will satisfy the equation. For example,

x=5, y=3

Answer 2

Answer:

x = 3

y = 4

Step-by-step explanation:

this is the answer