-40+3x=-4(x+3)

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Solution for -40+3x=-4(x+3) equation: 



-40+3x=-4(x+3)

We move all terms to the left:

-40+3x-(-4(x+3))=0



We calculate terms in parentheses: -(-4(x+3)), so:

-4(x+3)

We multiply parentheses

-4x-12

Back to the equation:

-(-4x-12)



We get rid of parentheses

3x+4x+12-40=0

We add all the numbers together, and all the variables

7x-28=0

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

7x=28

x=28/7

x=4

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