7x+21-2x=76

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Solution for 7x+21-2x=76 equation: 



7x+21-2x=76

We move all terms to the left:

7x+21-2x-(76)=0

We add all the numbers together, and all the variables

5x-55=0

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

5x=55

x=55/5

x=11

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