7(5-5x)=-280

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Solution for 7(5-5x)=-280 equation: 



7(5-5x)=-280

We move all terms to the left:

7(5-5x)-(-280)=0

We add all the numbers together, and all the variables

7(-5x+5)-(-280)=0

We add all the numbers together, and all the variables

7(-5x+5)+280=0

We multiply parentheses

-35x+35+280=0

We add all the numbers together, and all the variables

-35x+315=0

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

-35x=-315

x=-315/-35

x=+9

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