Question: For the following exercises, solve each system by substitution. 4x - 3y + 5z = 31 -x+ 2y + 4z = 20 x + 5y2z=

For the following exercises, solve each system by substitution.

4x - 3y + 5z = 31 -x+ 2y + 4z =

4x - 3y + 5z = 31 -x+ 2y + 4z = 20 x + 5y2z= -29

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