x^2-3x=x^2-x-25

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Solution for x^2-3x=x^2-x-25 equation:


Simplifying
x2 + -3x = x2 + -1x + -25

Reorder the terms:
-3x + x2 = x2 + -1x + -25

Reorder the terms:
-3x + x2 = -25 + -1x + x2

Add '-1x2' to each side of the equation.
-3x + x2 + -1x2 = -25 + -1x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-3x + 0 = -25 + -1x + x2 + -1x2
-3x = -25 + -1x + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-3x = -25 + -1x + 0
-3x = -25 + -1x

Solving
-3x = -25 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-3x + x = -25 + -1x + x

Combine like terms: -3x + x = -2x
-2x = -25 + -1x + x

Combine like terms: -1x + x = 0
-2x = -25 + 0
-2x = -25

Divide each side by '-2'.
x = 12.5

Simplifying
x = 12.5

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