exam Maths Puzzle Numerical Ability

can you help me in solving this problem:

if one-half of one integer is subtracted from three-fifths of the next consecutive integer, the difference is 3. what are the two integer.

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exam Other Question

3y+20=3+2y

3(y+6)=30

-5y-9=-(y-1)

37-18+8w=67
The arithmetic sequence x,2x-20,3x-32,...has D1=16. What is the formula for the nth term ?