(0.30*30)+(0.10*40)+(0.40*40)+(0.20*20)=

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Solution for (0.30*30)+(0.10*40)+(0.40*40)+(0.20*20)= equation: 


Simplifying
(0.30 * 30) + (0.10 * 40) + (0.40 * 40) + (0.20 * 20) = 0

Multiply 0.30 * 30
(9) + (0.10 * 40) + (0.40 * 40) + (0.20 * 20) = 0
9 + (0.10 * 40) + (0.40 * 40) + (0.20 * 20) = 0

Multiply 0.10 * 40
9 + (4) + (0.40 * 40) + (0.20 * 20) = 0
9 + 4 + (0.40 * 40) + (0.20 * 20) = 0

Multiply 0.40 * 40
9 + 4 + (16) + (0.20 * 20) = 0
9 + 4 + 16 + (0.20 * 20) = 0

Multiply 0.20 * 20
9 + 4 + 16 + (4) = 0
9 + 4 + 16 + 4 = 0

Combine like terms: 9 + 4 = 13
13 + 16 + 4 = 0

Combine like terms: 13 + 16 = 29
29 + 4 = 0

Combine like terms: 29 + 4 = 33
33 = 0

Solving
33 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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