Solve for y, z, a
a=-9
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z=-11+2\times 1
Consider the second equation. Insert the known values of variables into the equation.
z=-11+2
Multiply 2 and 1 to get 2.
z=-9
Add -11 and 2 to get -9.
a=-9
Consider the third equation. Insert the known values of variables into the equation.
y=1 z=-9 a=-9
The system is now solved.
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