(0.2)X+(0.8)78=80

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Solution for (0.2)X+(0.8)78=80 equation: 


Simplifying
(0.2) * X + (0.8) * 78 = 80

Multiply 0.8 * 78
0.2X + 62.4 = 80

Reorder the terms:
62.4 + 0.2X = 80

Solving
62.4 + 0.2X = 80

Solving for variable 'X'.

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

Add '-62.4' to each side of the equation.
62.4 + -62.4 + 0.2X = 80 + -62.4

Combine like terms: 62.4 + -62.4 = 0.0
0.0 + 0.2X = 80 + -62.4
0.2X = 80 + -62.4

Combine like terms: 80 + -62.4 = 17.6
0.2X = 17.6

Divide each side by '0.2'.
X = 88

Simplifying
X = 88

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