7x+(-3x=-28)

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Solution for 7x+(-3x=-28) equation: 



7x+(-3x=-28)

We move all terms to the left:

7x+(-3x-(-28))=0



We calculate terms in parentheses: +(-3x-(-28)), so:

-3x-(-28)

We add all the numbers together, and all the variables

-3x+28

Back to the equation:

+(-3x+28)



We get rid of parentheses

7x-3x+28=0

We add all the numbers together, and all the variables

4x+28=0

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

4x=-28

x=-28/4

x=-7

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