Question: Solve equations specified as matrices and vectors

This is another elementary question (I tried searching MaplePrimes but couldn't find anything):

Suppose I'd like to use "solve" to solve a system of equations specified as vectors:

z := <yb,x1b,x2b>:
v1 := <v1y,v1x1,v1x2>:
v2 := <v2y,v2x1,v2x2>:
e1 := z = v1 + v2;
e2 := v1 <= UU*delta1;
e3 := v2 <= UU*delta2;

Invoking "solve([e1,e2,e3],[z,v1,v2])" does not work. 

How do I convert each element of the vector equations e1, e2, e3 into a set of equations that "solve" can handle? (

(short of my retyping every single expression)


Note: I know the above example doesn't actually return a unique answer. I normally use "solve" to reduce my system of equations.

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