3(4x+6)=21x+3-9x+15

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Solution for 3(4x+6)=21x+3-9x+15 equation: 


Simplifying
3(4x + 6) = 21x + 3 + -9x + 15

Reorder the terms:
3(6 + 4x) = 21x + 3 + -9x + 15
(6 * 3 + 4x * 3) = 21x + 3 + -9x + 15
(18 + 12x) = 21x + 3 + -9x + 15

Reorder the terms:
18 + 12x = 3 + 15 + 21x + -9x

Combine like terms: 3 + 15 = 18
18 + 12x = 18 + 21x + -9x

Combine like terms: 21x + -9x = 12x
18 + 12x = 18 + 12x

Add '-18' to each side of the equation.
18 + -18 + 12x = 18 + -18 + 12x

Combine like terms: 18 + -18 = 0
0 + 12x = 18 + -18 + 12x
12x = 18 + -18 + 12x

Combine like terms: 18 + -18 = 0
12x = 0 + 12x
12x = 12x

Add '-12x' to each side of the equation.
12x + -12x = 12x + -12x

Combine like terms: 12x + -12x = 0
0 = 12x + -12x

Combine like terms: 12x + -12x = 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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