Solve for x, y, z
z=-9
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-2x=20-2
Consider the first equation. Subtract 2 from both sides.
-2x=18
Subtract 2 from 20 to get 18.
x=\frac{18}{-2}
Divide both sides by -2.
x=-9
Divide 18 by -2 to get -9.
y=-9
Consider the second equation. Insert the known values of variables into the equation.
z=-9
Consider the third equation. Insert the known values of variables into the equation.
x=-9 y=-9 z=-9
The system is now solved.
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