3(x+3)+x=9+4x

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Solution for 3(x+3)+x=9+4x equation: 


Simplifying
3(x + 3) + x = 9 + 4x

Reorder the terms:
3(3 + x) + x = 9 + 4x
(3 * 3 + x * 3) + x = 9 + 4x
(9 + 3x) + x = 9 + 4x

Combine like terms: 3x + x = 4x
9 + 4x = 9 + 4x

Add '-9' to each side of the equation.
9 + -9 + 4x = 9 + -9 + 4x

Combine like terms: 9 + -9 = 0
0 + 4x = 9 + -9 + 4x
4x = 9 + -9 + 4x

Combine like terms: 9 + -9 = 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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