7z^2+2z^2+400=0

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Solution for 7z^2+2z^2+400=0 equation:


Simplifying
7z2 + 2z2 + 400 = 0

Reorder the terms:
400 + 7z2 + 2z2 = 0

Combine like terms: 7z2 + 2z2 = 9z2
400 + 9z2 = 0

Solving
400 + 9z2 = 0

Solving for variable 'z'.

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

Add '-400' to each side of the equation.
400 + -400 + 9z2 = 0 + -400

Combine like terms: 400 + -400 = 0
0 + 9z2 = 0 + -400
9z2 = 0 + -400

Combine like terms: 0 + -400 = -400
9z2 = -400

Divide each side by '9'.
z2 = -44.44444444

Simplifying
z2 = -44.44444444

Reorder the terms:
44.44444444 + z2 = -44.44444444 + 44.44444444

Combine like terms: -44.44444444 + 44.44444444 = 0.00000000
44.44444444 + z2 = 0.00000000

The solution to this equation could not be determined.

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