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55=-5(4b-7)
We simplify the equation to the form, which is simple to understand
55=-5(4b-7)
Reorder the terms in parentheses
55=+(-20b+35)
Remove unnecessary parentheses
+55=-20b+35
We move all terms containing b to the left and all other terms to the right.
+20b=+35-55
We simplify left and right side of the equation.
+20b=-20
We divide both sides of the equation by 020 to get b.
b=-1
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