f(9)=5z^2+5z-7

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Solution for f(9)=5z^2+5z-7 equation: 


Simplifying
f(9) = 5z2 + 5z + -7

Reorder the terms for easier multiplication:
9f = 5z2 + 5z + -7

Reorder the terms:
9f = -7 + 5z + 5z2

Solving
9f = -7 + 5z + 5z2

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by '9'.
f = -0.7777777778 + 0.5555555556z + 0.5555555556z2

Simplifying
f = -0.7777777778 + 0.5555555556z + 0.5555555556z2

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