0.4(x+40)+.4x=32

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Solution for 0.4(x+40)+.4x=32 equation: 


Simplifying
0.4(x + 40) + 0.4x = 32

Reorder the terms:
0.4(40 + x) + 0.4x = 32
(40 * 0.4 + x * 0.4) + 0.4x = 32
(16 + 0.4x) + 0.4x = 32

Combine like terms: 0.4x + 0.4x = 0.8x
16 + 0.8x = 32

Solving
16 + 0.8x = 32

Solving for variable 'x'.

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

Add '-16' to each side of the equation.
16 + -16 + 0.8x = 32 + -16

Combine like terms: 16 + -16 = 0
0 + 0.8x = 32 + -16
0.8x = 32 + -16

Combine like terms: 32 + -16 = 16
0.8x = 16

Divide each side by '0.8'.
x = 20

Simplifying
x = 20

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