0.4x+2.1=0.8x-1.1

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Solution for 0.4x+2.1=0.8x-1.1 equation: 


Simplifying
0.4x + 2.1 = 0.8x + -1.1

Reorder the terms:
2.1 + 0.4x = 0.8x + -1.1

Reorder the terms:
2.1 + 0.4x = -1.1 + 0.8x

Solving
2.1 + 0.4x = -1.1 + 0.8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.8x' to each side of the equation.
2.1 + 0.4x + -0.8x = -1.1 + 0.8x + -0.8x

Combine like terms: 0.4x + -0.8x = -0.4x
2.1 + -0.4x = -1.1 + 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
2.1 + -0.4x = -1.1 + 0.0
2.1 + -0.4x = -1.1

Add '-2.1' to each side of the equation.
2.1 + -2.1 + -0.4x = -1.1 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + -0.4x = -1.1 + -2.1
-0.4x = -1.1 + -2.1

Combine like terms: -1.1 + -2.1 = -3.2
-0.4x = -3.2

Divide each side by '-0.4'.
x = 8

Simplifying
x = 8

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