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2b-6b=4
We simplify the equation to the form, which is simple to understand
2b-6b=4
We move all terms containing b to the left and all other terms to the right.
+2b-6b=+4
We simplify left and right side of the equation.
-4b=+4
We divide both sides of the equation by -4 to get b.
b=-1
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