Solve for z
z=-\frac{1}{3}\approx -0.333333333
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-2z+1-z=2
Subtract z from both sides.
-3z+1=2
Combine -2z and -z to get -3z.
-3z=2-1
Subtract 1 from both sides.
-3z=1
Subtract 1 from 2 to get 1.
z=\frac{1}{-3}
Divide both sides by -3.
z=-\frac{1}{3}
Fraction \frac{1}{-3} can be rewritten as -\frac{1}{3} by extracting the negative sign.
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