exam Maths Puzzle Numerical Ability

Can anyone give me the two solutions to this absolute value problem:

|-6w-1| = |-6w+5|

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exam Other Question

In a two digit number, unit’s digit is 3 more than the ten’s digit. The number formed by interchanging the digits and the original number are in the ratio 7 : 4. Find the number mary has six dollars in quarters,dimes and nickels.She has three times as many dimes as nickels and 17 quarters. how many nickels and how many dimes does she have.