Linear algebra help!! Please show steps Find the values of h such that y will be in the subspace of R^3 spanned by{v1,v2,v3} where v1=[1 2 -4}] , v2=[3 4 -8] , v3=[-1 0 0], y=[7 7 h]. Solution solution is : x+3y-z = 7 2x+4y = 7 -4x-8y =h dividing above 2 equations, 1/(-2) = 7/h =>h= -14 so h = -14.