PLEASE HELP IM GONNA FAIL MATH
Explain the procedure when using the elimination method to get rid of one of the variables

Question

PLEASE HELP IM GONNA FAIL MATH
Explain the procedure when using the elimination method to get rid of one of the variables

firejay5 · Answer

So explain how to do elimination

anonymous · Answer

I'll give u a medal if u just pls give methe anwser

anonymous · Answer

you must try to get one of the variables to equal 0

anonymous · Answer

do you need an example?

anonymous · Answer

http://www.basic-mathematics.com/elimination-method.html

firejay5 · Answer

For example if you had 4a + 2b = 15
                                   2a + 2b = 7 you would need to get the B's to equal zero in this case

anonymous · Answer

if your dealing with systems of equations: http://www.wyzant.com/Help/Math/Precalculus/Systems_Of_Equations/Elimination_Method.aspx

firejay5 · Answer

so you would (2a + 2b = 7) *-1 and it would be this: -2a - 2b = -7

firejay5 · Answer

the B's now cancel out. 4a - -2a = 6a = 8 <---- 15 - 7 = 8

firejay5 · Answer

the answer would actually be 2a 4a + -2a = 2a = 22<---- 15 + 7 = 22.
2a = 22 then divide 2 from both sides to get A = 11. Then insert 11 into both equations and solve to get y