.4x-10=20

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Solution for .4x-10=20 equation: 


Simplifying
0.4x + -10 = 20

Reorder the terms:
-10 + 0.4x = 20

Solving
-10 + 0.4x = 20

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 0.4x = 20 + 10

Combine like terms: -10 + 10 = 0
0 + 0.4x = 20 + 10
0.4x = 20 + 10

Combine like terms: 20 + 10 = 30
0.4x = 30

Divide each side by '0.4'.
x = 75

Simplifying
x = 75

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