x^2+7x+3-x^2-7x-3=

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Solution for x^2+7x+3-x^2-7x-3= equation: 


Simplifying
x2 + 7x + 3 + -1x2 + -7x + -3 = 0

Reorder the terms:
3 + -3 + 7x + -7x + x2 + -1x2 = 0

Combine like terms: 3 + -3 = 0
0 + 7x + -7x + x2 + -1x2 = 0
7x + -7x + x2 + -1x2 = 0

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

Combine like terms: x2 + -1x2 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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