3x+5=3x-7x

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Solution for 3x+5=3x-7x equation: 



3x+5=3x-7x

We move all terms to the left:

3x+5-(3x-7x)=0

We add all the numbers together, and all the variables

3x-(-4x)+5=0

We get rid of parentheses

3x+4x+5=0

We add all the numbers together, and all the variables

7x+5=0

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

7x=-5

x=-5/7

x=-5/7

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