30=-40-5x

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Solution for 30=-40-5x equation: 



30=-40-5x

We move all terms to the left:

30-(-40-5x)=0

We add all the numbers together, and all the variables

-(-5x-40)+30=0

We get rid of parentheses

5x+40+30=0

We add all the numbers together, and all the variables

5x+70=0

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

5x=-70

x=-70/5

x=-14

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