x^2-9X-7=8

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Solution for x^2-9X-7=8 equation:


Simplifying
x2 + -9X + -7 = 8

Reorder the terms:
-7 + -9X + x2 = 8

Solving
-7 + -9X + x2 = 8

Solving for variable 'X'.

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

Add '7' to each side of the equation.
-7 + -9X + 7 + x2 = 8 + 7

Reorder the terms:
-7 + 7 + -9X + x2 = 8 + 7

Combine like terms: -7 + 7 = 0
0 + -9X + x2 = 8 + 7
-9X + x2 = 8 + 7

Combine like terms: 8 + 7 = 15
-9X + x2 = 15

Add '-1x2' to each side of the equation.
-9X + x2 + -1x2 = 15 + -1x2

Combine like terms: x2 + -1x2 = 0
-9X + 0 = 15 + -1x2
-9X = 15 + -1x2

Divide each side by '-9'.
X = -1.666666667 + 0.1111111111x2

Simplifying
X = -1.666666667 + 0.1111111111x2

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