Question
Simplify:
6x + 8y - [(12x + 6y) - (4x + 3y) + 2y] - 4x
Solution
6x + 8y - [(12x + 6y) - (4x + 3y) + 2y] - 4x
= 6x + 8y - [12x + 6y - 4x - 3y + 2y] - 4x
= 6x + 8y - [8x + 5y] - 4x
= 6x + 8y - 8x - 5y - 4x
= -6x + 3y
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