1.1x+2.1=0.4x+1.89

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Solution for 1.1x+2.1=0.4x+1.89 equation: 


Simplifying
1.1x + 2.1 = 0.4x + 1.89

Reorder the terms:
2.1 + 1.1x = 0.4x + 1.89

Reorder the terms:
2.1 + 1.1x = 1.89 + 0.4x

Solving
2.1 + 1.1x = 1.89 + 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
2.1 + 1.1x + -0.4x = 1.89 + 0.4x + -0.4x

Combine like terms: 1.1x + -0.4x = 0.7x
2.1 + 0.7x = 1.89 + 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
2.1 + 0.7x = 1.89 + 0.0
2.1 + 0.7x = 1.89

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 0.7x = 1.89 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 0.7x = 1.89 + -2.1
0.7x = 1.89 + -2.1

Combine like terms: 1.89 + -2.1 = -0.21
0.7x = -0.21

Divide each side by '0.7'.
x = -0.3

Simplifying
x = -0.3

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