Solve for x, y, z, a
a=4
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x=2\times 2
Consider the first equation. Insert the known values of variables into the equation.
x=4
Multiply 2 and 2 to get 4.
z=4
Consider the third equation. Insert the known values of variables into the equation.
a=4
Consider the fourth equation. Insert the known values of variables into the equation.
x=4 y=2 z=4 a=4
The system is now solved.
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