3x+4=-x-7

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



3x+4=-x-7

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3x+1x+7+4=0

We add all the numbers together, and all the variables

4x+11=0

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

4x=-11

x=-11/4

x=-2+3/4

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