book Maths Puzzle Numerical Ability

4x(x+3)-8x(3x-2)

6x+10=-2x-46

3(x-6)-5(x-10)=24

8(2x-5)-5(2-x)=-4x

x(x-3)=x2+3x-18
7y = 15-3y

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book Other Question

if x > 0 then /x/ + 10 _ 0 The ratio of spaniels to poodles at the dog show was 5 to 7.If there were 35 spaniels at the dog show, how many poodles were there?(the possibilities are.........35, 49, 25, or none of these)