21x-6-13x=2(4x-5)+4

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Solution for 21x-6-13x=2(4x-5)+4 equation:


Simplifying
21x + -6 + -13x = 2(4x + -5) + 4

Reorder the terms:
-6 + 21x + -13x = 2(4x + -5) + 4

Combine like terms: 21x + -13x = 8x
-6 + 8x = 2(4x + -5) + 4

Reorder the terms:
-6 + 8x = 2(-5 + 4x) + 4
-6 + 8x = (-5 * 2 + 4x * 2) + 4
-6 + 8x = (-10 + 8x) + 4

Reorder the terms:
-6 + 8x = -10 + 4 + 8x

Combine like terms: -10 + 4 = -6
-6 + 8x = -6 + 8x

Add '6' to each side of the equation.
-6 + 6 + 8x = -6 + 6 + 8x

Combine like terms: -6 + 6 = 0
0 + 8x = -6 + 6 + 8x
8x = -6 + 6 + 8x

Combine like terms: -6 + 6 = 0
8x = 0 + 8x
8x = 8x

Add '-8x' to each side of the equation.
8x + -8x = 8x + -8x

Combine like terms: 8x + -8x = 0
0 = 8x + -8x

Combine like terms: 8x + -8x = 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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