3b+4-6b=21

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Solution for 3b+4-6b=21 equation:


3b+4-6b=21

We simplify the equation to the form, which is simple to understand 
3b+4-6b=21

We move all terms containing b to the left and all other terms to the right. 
+3b-6b=+21-4

We simplify left and right side of the equation. 
-3b=+17

We divide both sides of the equation by -3 to get b. 
b=-5.6666666666667

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