0.4(x-2)=15

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Solution for 0.4(x-2)=15 equation: 


Simplifying
0.4(x + -2) = 15

Reorder the terms:
0.4(-2 + x) = 15
(-2 * 0.4 + x * 0.4) = 15
(-0.8 + 0.4x) = 15

Solving
-0.8 + 0.4x = 15

Solving for variable 'x'.

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

Add '0.8' to each side of the equation.
-0.8 + 0.8 + 0.4x = 15 + 0.8

Combine like terms: -0.8 + 0.8 = 0.0
0.0 + 0.4x = 15 + 0.8
0.4x = 15 + 0.8

Combine like terms: 15 + 0.8 = 15.8
0.4x = 15.8

Divide each side by '0.4'.
x = 39.5

Simplifying
x = 39.5

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