3+x+7=-x-4

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Solution for 3+x+7=-x-4 equation: 



3+x+7=-x-4

We move all terms to the left:

3+x+7-(-x-4)=0

We add all the numbers together, and all the variables

x-(-1x-4)+3+7=0

We add all the numbers together, and all the variables

x-(-1x-4)+10=0

We get rid of parentheses

x+1x+4+10=0

We add all the numbers together, and all the variables

2x+14=0

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

2x=-14

x=-14/2

x=-7

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