-21=-7(x+5)

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Solution for -21=-7(x+5) equation: 



-21=-7(x+5)

We move all terms to the left:

-21-(-7(x+5))=0



We calculate terms in parentheses: -(-7(x+5)), so:

-7(x+5)

We multiply parentheses

-7x-35

Back to the equation:

-(-7x-35)



We get rid of parentheses

7x+35-21=0

We add all the numbers together, and all the variables

7x+14=0

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

7x=-14

x=-14/7

x=-2

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