mossypne

Oh the mistake is me just rushing it slightly. Im not that bad at maths (honest ).

For the 1st question i have: 3a + 2b = 1 (x5) = 15a + 10b = 5 15a + 3 = -51 (15a + 10b = 5) - (15a + 3 = -51) = 13b = -46 Not sure where to go from there and for the second i have: 5m + 6n = -33 (x2) = 10m + 12n = -66 10m + 5n = -4 (10m + 2n = -66) - (10m + 5n = -45) = 7n = -21 Same im not sure where to go from here.

No i know how to do them it's just im not sure about the negative ones. Look closely at the = on the equations above.

For my maths Homework i have to complete some simultaneous equations. I have come across some negative ones and we haven't done those. Is there anyway you could explain to me how to do them. The question is: (Please note: im not asking you to do it) 3a + 2b = 1 15a + 3b = -51 and 5m + 6n = -33 10m + 5n = -45

Hey, I'm mossypne and i love science (Physics and Chemistry, cant stand biology though). I think i'm pretty good at science for my level, i'm predicted A* for physics and chemistry and an A for biology. I'm only 15 so still in High school(England) so i won't understand all the topics you talk about, but i joined the forums as i love science. When i'm older i want to do computer science at University (Currently learning python) and i'd love to learn more about computers and how they work. Anyway thats me.