0.2(x+20)+0.4x=13

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Solution for 0.2(x+20)+0.4x=13 equation: 


Simplifying
0.2(x + 20) + 0.4x = 13

Reorder the terms:
0.2(20 + x) + 0.4x = 13
(20 * 0.2 + x * 0.2) + 0.4x = 13
(4 + 0.2x) + 0.4x = 13

Combine like terms: 0.2x + 0.4x = 0.6x
4 + 0.6x = 13

Solving
4 + 0.6x = 13

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 + 0.6x = 13 + -4

Combine like terms: 4 + -4 = 0
0 + 0.6x = 13 + -4
0.6x = 13 + -4

Combine like terms: 13 + -4 = 9
0.6x = 9

Divide each side by '0.6'.
x = 15

Simplifying
x = 15

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