30=-21+w/4

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Solution for 30=-21+w/4 equation: 



30=-21+w/4

We move all terms to the left:

30-(-21+w/4)=0

We add all the numbers together, and all the variables

-(w/4-21)+30=0

We get rid of parentheses

-w/4+21+30=0

We multiply all the terms by the denominator


-w+21*4+30*4=0

We add all the numbers together, and all the variables

-1w+204=0

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

-w=-204

w=-204/-1

w=+204

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