exam Maths Puzzle Numerical Ability

solve each equation for x
_4__ + _3__= ____1
x+4 x-1 x^2 +3x-4

_3x+5_ _ _4-2x_ =_x+4_
3x+2 3x^2+8x+4 x+2

_6x^2-x-2_ . _8x^2-6x+1_=
12x^2+5x-2

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exam Other Question
1) Write a quadratic equation having the given numbers as solutions
-10 and -5 The difference between two whole numbers is 8 and the difference between their reciprocals is 1/6. Find the two numbers.