Question: Solve the system b y back substitution { 3 x - 5 y + 2 z = - 1 4 5 y - 5 z

Solve the system by back substitution
{3x-5y+2z=-14
5y-5z=20
3z=0
x:
y=
z=
Solve the system b y back substitution { 3 x - 5

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