CSEC Maths - Solving Simultaneous Equations by Elimination

[josiebush]

My math exam is tomorrow and I’ve been using your videos to make my weaknesses my strength. Factorizing, simultaneous equations and matrices. Thank you much

[cleondrajohnson]

These maths sessions are really helping me as I was behind

[callmemiss]

Is it different ways to do elimination simultaneous equation? because everytime the method is changing and I'm getting mix up

[GIOBOZZ]

this video was very helpful thanks so much I think I'm also ready for my exams this Wednesday.

[Chrissy]

For - 4Y + 15 Y how did you get 19? Why isn't it 11? When I go on the number line and go at -4 and add 15 I am getting 11.

[aaliahjames]

Is it a problem if you use any equation for the elimination part ??

[daizfully]

what determines whether you eliminate X or Y, use equation one or two and why is it -4y + (-15y) ? The 15 has a plus sign in front of it so should'nt it be 11, not nineteen? (14:00 to 14:14) Also why is the eight not moved across to be added to the two? (June 1992)

[kingreureu]

hi there wanted to know the differnce between simultaneous equations and linear also so you used 2 different methods with the sums first you multiplied by a factor then add for the first two sums and the third sum you added then multiplied by a factor can you explain this for me please

[daizfully]

When do I use the last Elimination method you've shown? (Where multiplication is done to each equation?)

[swazar]

For the last question couldn’t I just times equation 2 by 3 giving me -3y or can I only times by 2, also ty for the vids they’re really helping