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

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


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

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

Reorder the terms:
9 + 4x = 9 + x + 3x

Combine like terms: x + 3x = 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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