Solve for z, x, a, b
b=-69
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a=3-9\times 8
Consider the third equation. Insert the known values of variables into the equation.
a=3-72
Multiply -9 and 8 to get -72.
a=-69
Subtract 72 from 3 to get -69.
b=-69
Consider the fourth equation. Insert the known values of variables into the equation.
z=3 x=8 a=-69 b=-69
The system is now solved.
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