exam Maths Puzzle Numerical Ability

Hi! Could someone graph |3x-6y|<9

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exam Other Question

Simplify : [(3+i)x^2-ix+4+1i]-[(-2+3i)x^2+(1-2i)x-3] how do i simplify this equation?

a=4,b=3,c=2
5a-9+2a