-x-13=-3x-9

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Solution for -x-13=-3x-9 equation: 



-x-13=-3x-9

We move all terms to the left:

-x-13-(-3x-9)=0

We add all the numbers together, and all the variables

-1x-(-3x-9)-13=0

We get rid of parentheses

-1x+3x+9-13=0

We add all the numbers together, and all the variables

2x-4=0

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

2x=4

x=4/2

x=2

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