280=-7(8+6x)

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Solution for 280=-7(8+6x) equation: 



280=-7(8+6x)

We move all terms to the left:

280-(-7(8+6x))=0

We add all the numbers together, and all the variables

-(-7(6x+8))+280=0



We calculate terms in parentheses: -(-7(6x+8)), so:

-7(6x+8)

We multiply parentheses

-42x-56

Back to the equation:

-(-42x-56)



We get rid of parentheses

42x+56+280=0

We add all the numbers together, and all the variables

42x+336=0

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

42x=-336

x=-336/42

x=-8

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