0.4x-1.8=-3.7

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Solution for 0.4x-1.8=-3.7 equation: 


Simplifying
0.4x + -1.8 = -3.7

Reorder the terms:
-1.8 + 0.4x = -3.7

Solving
-1.8 + 0.4x = -3.7

Solving for variable 'x'.

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

Add '1.8' to each side of the equation.
-1.8 + 1.8 + 0.4x = -3.7 + 1.8

Combine like terms: -1.8 + 1.8 = 0.0
0.0 + 0.4x = -3.7 + 1.8
0.4x = -3.7 + 1.8

Combine like terms: -3.7 + 1.8 = -1.9
0.4x = -1.9

Divide each side by '0.4'.
x = -4.75

Simplifying
x = -4.75

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