55x+60(7-x)=405

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Solution for 55x+60(7-x)=405 equation: 



55x+60(7-x)=405

We move all terms to the left:

55x+60(7-x)-(405)=0

We add all the numbers together, and all the variables

55x+60(-1x+7)-405=0

We multiply parentheses

55x-60x+420-405=0

We add all the numbers together, and all the variables

-5x+15=0

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

-5x=-15

x=-15/-5

x=+3

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