simplify (ii) 2x2 - x - 12/ 2x + 3
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=2 \times 2-x-12 \div 2x+3=
Multiply 2 and 2 to get 4.
=4-x-\frac{12}{2}x+3
Divide 12 by 2 to get 6.
=4-x-6x+3
Combine -x and -6x to get -7x.
=4-7x+3
Add 4 and 3 to get 7.
=7-7x
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