-4-(-21)=x/4

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Solution for -4-(-21)=x/4 equation: 



-4-(-21)=x/4

We move all terms to the left:

-4-(-21)-(x/4)=0

We add all the numbers together, and all the variables

-(+x/4)-4-(-21)=0

We add all the numbers together, and all the variables

-(+x/4)+17=0

We get rid of parentheses

-x/4+17=0

We multiply all the terms by the denominator


-x+17*4=0

We add all the numbers together, and all the variables

-1x+68=0

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

-x=-68

x=-68/-1

x=+68

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