.4x-8=9

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Solution for .4x-8=9 equation: 


Simplifying
0.4x + -8 = 9

Reorder the terms:
-8 + 0.4x = 9

Solving
-8 + 0.4x = 9

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 0.4x = 9 + 8

Combine like terms: -8 + 8 = 0
0 + 0.4x = 9 + 8
0.4x = 9 + 8

Combine like terms: 9 + 8 = 17
0.4x = 17

Divide each side by '0.4'.
x = 42.5

Simplifying
x = 42.5

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