math question
how do you solve (8 + 6a) 4 - 8- = 128?
Homework Answers
SOLUTION :
(8 + 6a)4 - 8 = 128
Open the bracket :
=> 32 + 24a - 8 = 128
=> (32 - 8) + 24a = 128
=> 24 + 24a = 128
Subtract 24 from both sides :
=> 24a = 128 - 24
=> 24a = 104
Divide both sides by 24 :
=> a = 104/24
=> a = 13/3 = 4.33 (ANSWER).
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