0.1(x+80)+0.1x=9

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Solution for 0.1(x+80)+0.1x=9 equation:


Simplifying
0.1(x + 80) + 0.1x = 9

Reorder the terms:
0.1(80 + x) + 0.1x = 9
(80 * 0.1 + x * 0.1) + 0.1x = 9
(8 + 0.1x) + 0.1x = 9

Combine like terms: 0.1x + 0.1x = 0.2x
8 + 0.2x = 9

Solving
8 + 0.2x = 9

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 0.2x = 9 + -8

Combine like terms: 8 + -8 = 0
0 + 0.2x = 9 + -8
0.2x = 9 + -8

Combine like terms: 9 + -8 = 1
0.2x = 1

Divide each side by '0.2'.
x = 5

Simplifying
x = 5

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