7+x=4-x

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Solution for 7+x=4-x equation: 



7+x=4-x

We move all terms to the left:

7+x-(4-x)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

x+1x-4+7=0

We add all the numbers together, and all the variables

2x+3=0

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

2x=-3

x=-3/2

x=-1+1/2

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