21x-4-15x=2(3x-3)+2

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Solution for 21x-4-15x=2(3x-3)+2 equation:


Simplifying
21x + -4 + -15x = 2(3x + -3) + 2

Reorder the terms:
-4 + 21x + -15x = 2(3x + -3) + 2

Combine like terms: 21x + -15x = 6x
-4 + 6x = 2(3x + -3) + 2

Reorder the terms:
-4 + 6x = 2(-3 + 3x) + 2
-4 + 6x = (-3 * 2 + 3x * 2) + 2
-4 + 6x = (-6 + 6x) + 2

Reorder the terms:
-4 + 6x = -6 + 2 + 6x

Combine like terms: -6 + 2 = -4
-4 + 6x = -4 + 6x

Add '4' to each side of the equation.
-4 + 4 + 6x = -4 + 4 + 6x

Combine like terms: -4 + 4 = 0
0 + 6x = -4 + 4 + 6x
6x = -4 + 4 + 6x

Combine like terms: -4 + 4 = 0
6x = 0 + 6x
6x = 6x

Add '-6x' to each side of the equation.
6x + -6x = 6x + -6x

Combine like terms: 6x + -6x = 0
0 = 6x + -6x

Combine like terms: 6x + -6x = 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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