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-2(3b)+4(5b)+12=82
We simplify the equation to the form, which is simple to understand
-2(3b)+4(5b)+12=82
Reorder the terms in parentheses
+(-6b)+4*(5b)+12=82
Remove unnecessary parentheses
-6b+4+*(+5b+)+12=+82
Reorder the terms in parentheses
-6b+(+20b)+12=82
Remove unnecessary parentheses
-6b+20b+12=+82
We move all terms containing b to the left and all other terms to the right.
-6b+20b=+82-12
We simplify left and right side of the equation.
+14b=+70
We divide both sides of the equation by 14 to get b.
b=5
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