X^2+6X+9=X^2+15

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Solution for X^2+6X+9=X^2+15 equation: 


Simplifying
X2 + 6X + 9 = X2 + 15

Reorder the terms:
9 + 6X + X2 = X2 + 15

Reorder the terms:
9 + 6X + X2 = 15 + X2

Add '-1X2' to each side of the equation.
9 + 6X + X2 + -1X2 = 15 + X2 + -1X2

Combine like terms: X2 + -1X2 = 0
9 + 6X + 0 = 15 + X2 + -1X2
9 + 6X = 15 + X2 + -1X2

Combine like terms: X2 + -1X2 = 0
9 + 6X = 15 + 0
9 + 6X = 15

Solving
9 + 6X = 15

Solving for variable 'X'.

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

Add '-9' to each side of the equation.
9 + -9 + 6X = 15 + -9

Combine like terms: 9 + -9 = 0
0 + 6X = 15 + -9
6X = 15 + -9

Combine like terms: 15 + -9 = 6
6X = 6

Divide each side by '6'.
X = 1

Simplifying
X = 1

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