0.4x-1.4=2.1x+1.8

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Solution for 0.4x-1.4=2.1x+1.8 equation:


Simplifying
0.4x + -1.4 = 2.1x + 1.8

Reorder the terms:
-1.4 + 0.4x = 2.1x + 1.8

Reorder the terms:
-1.4 + 0.4x = 1.8 + 2.1x

Solving
-1.4 + 0.4x = 1.8 + 2.1x

Solving for variable 'x'.

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

Add '-2.1x' to each side of the equation.
-1.4 + 0.4x + -2.1x = 1.8 + 2.1x + -2.1x

Combine like terms: 0.4x + -2.1x = -1.7x
-1.4 + -1.7x = 1.8 + 2.1x + -2.1x

Combine like terms: 2.1x + -2.1x = 0.0
-1.4 + -1.7x = 1.8 + 0.0
-1.4 + -1.7x = 1.8

Add '1.4' to each side of the equation.
-1.4 + 1.4 + -1.7x = 1.8 + 1.4

Combine like terms: -1.4 + 1.4 = 0.0
0.0 + -1.7x = 1.8 + 1.4
-1.7x = 1.8 + 1.4

Combine like terms: 1.8 + 1.4 = 3.2
-1.7x = 3.2

Divide each side by '-1.7'.
x = -1.882352941

Simplifying
x = -1.882352941

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