20x+25(x-2)+40(x-4)=215

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Solution for 20x+25(x-2)+40(x-4)=215 equation: 



20x+25(x-2)+40(x-4)=215

We move all terms to the left:

20x+25(x-2)+40(x-4)-(215)=0

We multiply parentheses

20x+25x+40x-50-160-215=0

We add all the numbers together, and all the variables

85x-425=0

We move all terms containing x to the left, all other terms to the right

85x=425

x=425/85

x=5

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