Solve for y, z, a
a=17
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z=20-3
Consider the second equation. Multiply 5 and 4 to get 20.
z=17
Subtract 3 from 20 to get 17.
a=17
Consider the third equation. Insert the known values of variables into the equation.
y=0 z=17 a=17
The system is now solved.
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