how to solve a simultaneous equation? pls
Solve for 1 of the variables from the first and replace it into the second or Vice Versa.
There are two ways basically to do this kind of equations. They are: 1)substitution method: https://www.youtube.com/watch?v=uzyd_mIJaoc 2)elimination method: https://www.youtube.com/watch?v=vA-55wZtLeE I hope this videos will help you throughout your problem and do not hesitate to watch these videos.
easiest way..from its dterminant and take it equal to zero..just evalute and get result..
If you have any specific problems then you can ask.
4x+2y=20--->1 7x-3y=9--->2 make both x =
ok suppose for example 4x+y=17--->1 2x+y=9--->2 multiply the secont equa with - 4x+y=17--->1 -2x-y=-9--->2 2x=8 x=8/2 x=4 substitute x=4 in euqa 1 4(4)+y=17 16+y=17 y=17-16 y-1 now substitute both x=4 and y=1 in equation 2 to check 2(4)+1=9 9=9
there are 4 steps to solve simultaneous equation if u dont understand any step then tell me
thank you very much :)
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