0.4x-3=-2.1

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Solution for 0.4x-3=-2.1 equation: 


Simplifying
0.4x + -3 = -2.1

Reorder the terms:
-3 + 0.4x = -2.1

Solving
-3 + 0.4x = -2.1

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 0.4x = -2.1 + 3

Combine like terms: -3 + 3 = 0
0 + 0.4x = -2.1 + 3
0.4x = -2.1 + 3

Combine like terms: -2.1 + 3 = 0.9
0.4x = 0.9

Divide each side by '0.4'.
x = 2.25

Simplifying
x = 2.25

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