Question
Sorry this is a really stupid question.
Ive been going back to basics and im a bit lost (probably tired so I cant see the obvious)
so im working out 87v+38w=d
ive done the basics pretty well and have d=1.
Now backwards substitution is spinning my head a bit.
11=87-2*38
5=38-3*11
1=11-2*5
So using backwards substitution I have:
1=11-2(38-3*11)
1=7*11-2*38
This is where im a bit unsure about the order so we have reduced the equation down and im not entirely sure I understand intuitively where the 7 came from.
have we (11-(-3))/2=7
Again sorry this is such a basic question but I want to be sure I understand what is happening explicitly.
Ive been going back to basics and im a bit lost (probably tired so I cant see the obvious)
so im working out 87v+38w=d
ive done the basics pretty well and have d=1.
Now backwards substitution is spinning my head a bit.
11=87-2*38
5=38-3*11
1=11-2*5
So using backwards substitution I have:
1=11-2(38-3*11)
1=7*11-2*38
This is where im a bit unsure about the order so we have reduced the equation down and im not entirely sure I understand intuitively where the 7 came from.
have we (11-(-3))/2=7
Again sorry this is such a basic question but I want to be sure I understand what is happening explicitly.