-2w-13=-21

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Solution for -2w-13=-21 equation: 



-2w-13=-21

We move all terms to the left:

-2w-13-(-21)=0

We add all the numbers together, and all the variables

-2w+8=0

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

-2w=-8

w=-8/-2

w=+4

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