Affine combination

[modern plover]

Is it possible to do this question by making our system as
{c1v1 + c2v2 + c3v3 + c4v4 = y
c1 + c2 + c3 + c4 = 1 } ?

[sly breach]

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[modern plover]

they have done this in the book

[modern plover]

nvm got it

+close