Ab - 2(3a - 4b) A = 2 B = 3 Show your working out Whoever gets it first gets $250, must show all your working.

Ab - 2(3a - 4b) (Considering A=a and B=b, If A is not a and B is not b, you cant solve it ) 6-2(6-12) 6-2(-6) 6-(-12) ab-2(3a-4b) = 18