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-694=-21b+104
We simplify the equation to the form, which is simple to understand
-694=-21b+104
We move all terms containing b to the left and all other terms to the right.
+21b=+104+694
We simplify left and right side of the equation.
+21b=+798
We divide both sides of the equation by 021 to get b.
b=38
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