Answer:
a =
Explanation:
Given
w = 3(2a + b) - 4 ( add 4 to both sides )
w + 4 = 3(2a + b) ← distribute parenthesis
w + 4 = 6a + 3b ( subtract 3b from both sides )
w + 4 - 3b = 6a ( divide both sides by 6 )
= a
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