Solve for z
z = \frac{40}{9} = 4\frac{4}{9} \approx 4.444444444
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z+40=10z
Multiply both sides of the equation by 10.
z+40-10z=0
Subtract 10z from both sides.
-9z+40=0
Combine z and -10z to get -9z.
-9z=-40
Subtract 40 from both sides. Anything subtracted from zero gives its negation.
z=\frac{-40}{-9}
Divide both sides by -9.
z=\frac{40}{9}
Fraction \frac{-40}{-9} can be simplified to \frac{40}{9} by removing the negative sign from both the numerator and the denominator.
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