exam Maths Puzzle Numerical Ability

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The additive inverse of a number divided by 12 is the same as one less than 3 times its reciprocal. Find the number.

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exam Other Question

Please help me out on this graphing question, I dont understand the graphing part.

A y>-2
B y>2x-2
C 4x-6y<12

Thanks Scott is 22 years older than Sun Jung, In 7 years, Scott will be twice as old as Sun Jung. Give the current age of Scott and Sun Jung.