exam Maths Puzzle Numerical Ability

gcf of 45 and 77

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exam Other Question

The task is to Wrtie an inequality represented by the graph.

<-- -20-- -10---0---*20---30---40->

If someone....Anyone could help me,It would be <b>greatly</b> appreciated
Find the value of x in the inequality ]x-7[ is less than or equal to 2.
NOTE- ][ are absolute value signs.
Thanks,
Pat