0.4x+0.3=0.8x-0.9

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Solution for 0.4x+0.3=0.8x-0.9 equation: 


Simplifying
0.4x + 0.3 = 0.8x + -0.9

Reorder the terms:
0.3 + 0.4x = 0.8x + -0.9

Reorder the terms:
0.3 + 0.4x = -0.9 + 0.8x

Solving
0.3 + 0.4x = -0.9 + 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.
0.3 + 0.4x + -0.8x = -0.9 + 0.8x + -0.8x

Combine like terms: 0.4x + -0.8x = -0.4x
0.3 + -0.4x = -0.9 + 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
0.3 + -0.4x = -0.9 + 0.0
0.3 + -0.4x = -0.9

Add '-0.3' to each side of the equation.
0.3 + -0.3 + -0.4x = -0.9 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + -0.4x = -0.9 + -0.3
-0.4x = -0.9 + -0.3

Combine like terms: -0.9 + -0.3 = -1.2
-0.4x = -1.2

Divide each side by '-0.4'.
x = 3

Simplifying
x = 3

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