Solve for x, y, z, a
a=1
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y=3\left(9-6\right)-8
Consider the second equation. Insert the known values of variables into the equation.
y=3\times 3-8
Subtract 6 from 9 to get 3.
y=9-8
Multiply 3 and 3 to get 9.
y=1
Subtract 8 from 9 to get 1.
z=1
Consider the third equation. Insert the known values of variables into the equation.
a=1
Consider the fourth equation. Insert the known values of variables into the equation.
x=9 y=1 z=1 a=1
The system is now solved.
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