exam Maths Puzzle Numerical Ability

(6+15)+14=6+(15+14)...Which property is used?

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exam Other Question

equation (1/5)-6=15625 in logarithm form
find the value of x log 2 32=x
express log (x+5) log as the logarithm of a single quanity
Can someone help with these problems?

z+u/zu^2+4z+u/z^2u

7w-42/6w


y/7-7/y=0