7x-4-3=-21

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Solution for 7x-4-3=-21 equation: 



7x-4-3=-21

We move all terms to the left:

7x-4-3-(-21)=0

We add all the numbers together, and all the variables

7x+14=0

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

7x=-14

x=-14/7

x=-2

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