Solve for x, y, z, a
a=300
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x=0
Consider the first equation. Divide both sides by 25. Zero divided by any non-zero number gives zero.
y=300
Consider the second equation. Multiply 15 and 20 to get 300.
z=300
Consider the third equation. Insert the known values of variables into the equation.
a=300
Consider the fourth equation. Insert the known values of variables into the equation.
x=0 y=300 z=300 a=300
The system is now solved.
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