0.20(x+40)+1.40x=72

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Solution for 0.20(x+40)+1.40x=72 equation: 


Simplifying
0.20(x + 40) + 1.40x = 72

Reorder the terms:
0.20(40 + x) + 1.40x = 72
(40 * 0.20 + x * 0.20) + 1.40x = 72
(8 + 0.20x) + 1.40x = 72

Combine like terms: 0.20x + 1.40x = 1.6x
8 + 1.6x = 72

Solving
8 + 1.6x = 72

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 + 1.6x = 72 + -8

Combine like terms: 8 + -8 = 0
0 + 1.6x = 72 + -8
1.6x = 72 + -8

Combine like terms: 72 + -8 = 64
1.6x = 64

Divide each side by '1.6'.
x = 40

Simplifying
x = 40

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