exam Maths Puzzle Numerical Ability

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absolute value of -x - 2 > -5; d = {Integers}

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exam Other Question

given: g is between f and h. h is between g and j.
Prove:fg + gj = fh + hj
Tell how many solutions the linear system has: infinitely many solutions, one solution, or no solution.
x-4y=2
2x-8y=5