choose the ordered pair (x,y) that is a solution for the equation. 13x-11y=14 (-6,-3) (-4,-6) (0,-3) (-16,-5)
Did you try plugging each solution in for x,y and seeing if the sides were equal?
i wasn't taught how to do that i'm now learning this
oh ok, Well let's try to put -6 in for x and then -3 for y..... so it would look like this... 13(-6)-11(-3)=14 so 13 time -6 is -78 and 11 times -3 is -33 -78 minus a -33 (so -78 +33) = 45.... 45 is not = to 14... so it's one of the other 3... does that make sense or not? It is so hard to explain online haha :)
hold on, let me try. that was a good explanation
If you know PEMDAS (the order of operations) once you know how to plug in the possible answers you can figure out which answer is best. Now solving for x, y on your own is another story. Finding x or y requires you to isolate the x or y by moving parts of the equation to the other side, leaving the x, y on one side. For example If 3x + 10 = 19 then.... 3x = 19 -10 3x = 9 x = 9/3 x = 3
(-4,-6) right?
Yep! :)
Join our real-time social learning platform and learn together with your friends!