x^2+2x-7=5+x^2

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Solution for x^2+2x-7=5+x^2 equation:


Simplifying
x2 + 2x + -7 = 5 + x2

Reorder the terms:
-7 + 2x + x2 = 5 + x2

Add '-1x2' to each side of the equation.
-7 + 2x + x2 + -1x2 = 5 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-7 + 2x + 0 = 5 + x2 + -1x2
-7 + 2x = 5 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-7 + 2x = 5 + 0
-7 + 2x = 5

Solving
-7 + 2x = 5

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 + 7 + 2x = 5 + 7

Combine like terms: -7 + 7 = 0
0 + 2x = 5 + 7
2x = 5 + 7

Combine like terms: 5 + 7 = 12
2x = 12

Divide each side by '2'.
x = 6

Simplifying
x = 6

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