7x-17=4+7x-21

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Solution for 7x-17=4+7x-21 equation:


Simplifying
7x + -17 = 4 + 7x + -21

Reorder the terms:
-17 + 7x = 4 + 7x + -21

Reorder the terms:
-17 + 7x = 4 + -21 + 7x

Combine like terms: 4 + -21 = -17
-17 + 7x = -17 + 7x

Add '17' to each side of the equation.
-17 + 17 + 7x = -17 + 17 + 7x

Combine like terms: -17 + 17 = 0
0 + 7x = -17 + 17 + 7x
7x = -17 + 17 + 7x

Combine like terms: -17 + 17 = 0
7x = 0 + 7x
7x = 7x

Add '-7x' to each side of the equation.
7x + -7x = 7x + -7x

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

Combine like terms: 7x + -7x = 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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