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230=-5(8b-6)
We move all terms to the left:
230-(-5(8b-6))=0
We calculate terms in parentheses: -(-5(8b-6)), so:We get rid of parentheses
-5(8b-6)
We multiply parentheses
-40b+30
Back to the equation:
-(-40b+30)
40b-30+230=0
We add all the numbers together, and all the variables
40b+200=0
We move all terms containing b to the left, all other terms to the right
40b=-200
b=-200/40
b=-5
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