(3*5)*x+(21-12)=15*x+9

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Solution for (3*5)*x+(21-12)=15*x+9 equation: 


Simplifying
(3 * 5) * x + (21 + -12) = 15x + 9

Multiply 3 * 5
(15) * x + (21 + -12) = 15x + 9

Combine like terms: 21 + -12 = 9
15x + (9) = 15x + 9
15x + 9 = 15x + 9

Reorder the terms:
9 + 15x = 15x + 9

Reorder the terms:
9 + 15x = 9 + 15x

Add '-9' to each side of the equation.
9 + -9 + 15x = 9 + -9 + 15x

Combine like terms: 9 + -9 = 0
0 + 15x = 9 + -9 + 15x
15x = 9 + -9 + 15x

Combine like terms: 9 + -9 = 0
15x = 0 + 15x
15x = 15x

Add '-15x' to each side of the equation.
15x + -15x = 15x + -15x

Combine like terms: 15x + -15x = 0
0 = 15x + -15x

Combine like terms: 15x + -15x = 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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