0.8(x+20)+0.8x=80

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Solution for 0.8(x+20)+0.8x=80 equation: 


Simplifying
0.8(x + 20) + 0.8x = 80

Reorder the terms:
0.8(20 + x) + 0.8x = 80
(20 * 0.8 + x * 0.8) + 0.8x = 80
(16 + 0.8x) + 0.8x = 80

Combine like terms: 0.8x + 0.8x = 1.6x
16 + 1.6x = 80

Solving
16 + 1.6x = 80

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 + 1.6x = 80 + -16

Combine like terms: 16 + -16 = 0
0 + 1.6x = 80 + -16
1.6x = 80 + -16

Combine like terms: 80 + -16 = 64
1.6x = 64

Divide each side by '1.6'.
x = 40

Simplifying
x = 40

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