book Maths Puzzle Numerical Ability

Find f(x) where y=f(x). 8y(6x-7)-12x(4y+3)+265-5(3x-y+2)=0

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book Other Question

1. want is the factor 2p2-9p+10
2. solve the inequality:-x+1<-1/2
3.|b+2/<-1=b/b<3
4.find the domain of y=x+3 if the range is {-1,1,3,5
5.find the product:-5a2(a How many gallons of 40% acid solution must be mixed with 30 gallons of 16% solution to obtain solution of 30% acid?