Answer:
a = (2b-6)/3
Explanation:
3a = 2b + -6
lets make a the subject of the formula
divide both sides of the equation by 3
3a/3 = a = (2b-6)/3
shown below
3a = 2b - 6
a = (2b - 6) / 3 or 2b / 3 - 2
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