exam Maths Puzzle Numerical Ability

Solve 2/3(6x+30)=x + 5(x+4)-2x

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exam Other Question

Solve and check for X :

[5/(x+6)]+[2/(x^2+7x+6)]=[3/(x+1)] Which of the following exponential functions best describes the table below?
x: -0.1, 0 , 0.1 , 0.2
y: 6, 3, 1.5, 0.75
a) y=6(1/2)^10x
b) y=3(1/2)^x/10
c) y=3(1/2)^10x
d) y=3