2.1x-8.9=3.9x-8.9-1.8x

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Solution for 2.1x-8.9=3.9x-8.9-1.8x equation: 


Simplifying
2.1x + -8.9 = 3.9x + -8.9 + -1.8x

Reorder the terms:
-8.9 + 2.1x = 3.9x + -8.9 + -1.8x

Reorder the terms:
-8.9 + 2.1x = -8.9 + 3.9x + -1.8x

Combine like terms: 3.9x + -1.8x = 2.1x
-8.9 + 2.1x = -8.9 + 2.1x

Add '8.9' to each side of the equation.
-8.9 + 8.9 + 2.1x = -8.9 + 8.9 + 2.1x

Combine like terms: -8.9 + 8.9 = 0.0
0.0 + 2.1x = -8.9 + 8.9 + 2.1x
2.1x = -8.9 + 8.9 + 2.1x

Combine like terms: -8.9 + 8.9 = 0.0
2.1x = 0.0 + 2.1x
2.1x = 2.1x

Add '-2.1x' to each side of the equation.
2.1x + -2.1x = 2.1x + -2.1x

Combine like terms: 2.1x + -2.1x = 0.0
0.0 = 2.1x + -2.1x

Combine like terms: 2.1x + -2.1x = 0.0
0.0 = 0.0

Solving
0.0 = 0.0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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