0.1x+0.2(20-x)=2.8

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Solution for 0.1x+0.2(20-x)=2.8 equation: 


Simplifying
0.1x + 0.2(20 + -1x) = 2.8
0.1x + (20 * 0.2 + -1x * 0.2) = 2.8
0.1x + (4 + -0.2x) = 2.8

Reorder the terms:
4 + 0.1x + -0.2x = 2.8

Combine like terms: 0.1x + -0.2x = -0.1x
4 + -0.1x = 2.8

Solving
4 + -0.1x = 2.8

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + -0.1x = 2.8 + -4

Combine like terms: 4 + -4 = 0
0 + -0.1x = 2.8 + -4
-0.1x = 2.8 + -4

Combine like terms: 2.8 + -4 = -1.2
-0.1x = -1.2

Divide each side by '-0.1'.
x = 12

Simplifying
x = 12

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