Solve for x, y, z, a
a=11
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z=1+2\times 5
Consider the third equation. Insert the known values of variables into the equation.
z=1+10
Multiply 2 and 5 to get 10.
z=11
Add 1 and 10 to get 11.
a=11
Consider the fourth equation. Insert the known values of variables into the equation.
x=1 y=5 z=11 a=11
The system is now solved.
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