1. The problem is to write the expression minus(bminus2c)minus3a without brackets. 2. First, understand that "minus" means a negative sign, so the expression is: $$- (b - 2c) - 3a$$ 3. Use the distributive property to remove the brackets by multiplying the negative sign inside: $$-1 \times (b - 2c) = -b + 2c$$ 4. Now rewrite the expression: $$-b + 2c - 3a$$ 5. This is the expression without brackets. Final answer: $$-b + 2c - 3a$$