Solve for z
z = \frac{140}{9} = 15\frac{5}{9} \approx 15.555555556
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-5z=4z-140
Multiply both sides of the equation by 20, the least common multiple of -4,5.
-5z-4z=-140
Subtract 4z from both sides.
-9z=-140
Combine -5z and -4z to get -9z.
z=\frac{-140}{-9}
Divide both sides by -9.
z=\frac{140}{9}
Fraction \frac{-140}{-9} can be simplified to \frac{140}{9} by removing the negative sign from both the numerator and the denominator.
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