9z^2-42+49=0

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Solution for 9z^2-42+49=0 equation:


Simplifying
9z2 + -42 + 49 = 0

Reorder the terms:
-42 + 49 + 9z2 = 0

Combine like terms: -42 + 49 = 7
7 + 9z2 = 0

Solving
7 + 9z2 = 0

Solving for variable 'z'.

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

Add '-7' to each side of the equation.
7 + -7 + 9z2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 9z2 = 0 + -7
9z2 = 0 + -7

Combine like terms: 0 + -7 = -7
9z2 = -7

Divide each side by '9'.
z2 = -0.7777777778

Simplifying
z2 = -0.7777777778

Reorder the terms:
0.7777777778 + z2 = -0.7777777778 + 0.7777777778

Combine like terms: -0.7777777778 + 0.7777777778 = 0.0000000000
0.7777777778 + z2 = 0.0000000000

The solution to this equation could not be determined.

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