4x=-13=21

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Solution for 4x=-13=21 equation: 



4x=-13=21

We move all terms to the left:

4x-(-13)=0

We add all the numbers together, and all the variables

4x+13=0

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

4x=-13

x=-13/4

x=-3+1/4

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