The coefficients of a system of equations are given in two vectors, x1 and x2. Write a function to solve the equation and return the answers for x and y. For example:
x1 = [2 2 6]; x2 = [1 -1 0];
2x + 2y = 6 x - y = 0
x = 1.5 y = 1.5
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There seem to be some problems. First, in the statement of the problem, I think the correct solution is z=3, not z=4. Second, in the test problems, the function solution() is called with an argument of x. It needs to be solution(x1,x2).
... also, in test #3, the solution is compared to y_correct rather than z_correct.
The problem description and test suite have been cleaned up.