z^2-8y+15=0

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Solution for z^2-8y+15=0 equation:


Simplifying
z2 + -8y + 15 = 0

Reorder the terms:
15 + -8y + z2 = 0

Solving
15 + -8y + z2 = 0

Solving for variable 'y'.

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

Add '-15' to each side of the equation.
15 + -8y + -15 + z2 = 0 + -15

Reorder the terms:
15 + -15 + -8y + z2 = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -8y + z2 = 0 + -15
-8y + z2 = 0 + -15

Combine like terms: 0 + -15 = -15
-8y + z2 = -15

Add '-1z2' to each side of the equation.
-8y + z2 + -1z2 = -15 + -1z2

Combine like terms: z2 + -1z2 = 0
-8y + 0 = -15 + -1z2
-8y = -15 + -1z2

Divide each side by '-8'.
y = 1.875 + 0.125z2

Simplifying
y = 1.875 + 0.125z2

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