21-6b=-51

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Solution for 21-6b=-51 equation:



21-6b=-51
We move all terms to the left:
21-6b-(-51)=0
We add all the numbers together, and all the variables
-6b+72=0
We move all terms containing b to the left, all other terms to the right
-6b=-72
b=-72/-6
b=+12

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