x^2+2X+15=30

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Solution for x^2+2X+15=30 equation: 


Simplifying
x2 + 2X + 15 = 30

Reorder the terms:
15 + 2X + x2 = 30

Solving
15 + 2X + x2 = 30

Solving for variable 'X'.

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

Add '-15' to each side of the equation.
15 + 2X + -15 + x2 = 30 + -15

Reorder the terms:
15 + -15 + 2X + x2 = 30 + -15

Combine like terms: 15 + -15 = 0
0 + 2X + x2 = 30 + -15
2X + x2 = 30 + -15

Combine like terms: 30 + -15 = 15
2X + x2 = 15

Add '-1x2' to each side of the equation.
2X + x2 + -1x2 = 15 + -1x2

Combine like terms: x2 + -1x2 = 0
2X + 0 = 15 + -1x2
2X = 15 + -1x2

Divide each side by '2'.
X = 7.5 + -0.5x2

Simplifying
X = 7.5 + -0.5x2

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