Verified answer

the first after multiplying by 3 is

6x + 9y = 9 and the second after multiplying by 2 is

6x - 4y = 22 now subtract them

13y = - 13

y = -1

so only (7, -1) of those shown is feasible

structures of equations could have one answer, no answer, or limitless strategies. once you draw the two traces on an analogous graph, you establish which of those is the case. If 2 distinctive traces intersect, they are able to in undemanding terms do so at one element. that element the place they intersect is the gadget's answer. This quite ability that's the only set of x and y values that make the two equations genuine. (one answer, a element) If the traces are parallel, they in no way intersect. which ability there is not any pair of x and y values which may make the two equations genuine. (no strategies) If the equations create an analogous line, they overlap and each element on the line satisfies the two equations. (limitless strategies, all factors)