7x+21-3x=4x+4+17

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Solution for 7x+21-3x=4x+4+17 equation:


Simplifying
7x + 21 + -3x = 4x + 4 + 17

Reorder the terms:
21 + 7x + -3x = 4x + 4 + 17

Combine like terms: 7x + -3x = 4x
21 + 4x = 4x + 4 + 17

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

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

Add '-21' to each side of the equation.
21 + -21 + 4x = 21 + -21 + 4x

Combine like terms: 21 + -21 = 0
0 + 4x = 21 + -21 + 4x
4x = 21 + -21 + 4x

Combine like terms: 21 + -21 = 0
4x = 0 + 4x
4x = 4x

Add '-4x' to each side of the equation.
4x + -4x = 4x + -4x

Combine like terms: 4x + -4x = 0
0 = 4x + -4x

Combine like terms: 4x + -4x = 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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