exam Maths Puzzle Numerical Ability

-2/3x + 1 = 7

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exam Other Question

Graph on a number line :

-x - 3 < but not equal to 1 or x + 2 >3; D = {Integers}
Find an equation in the form y=mx+b(where possible) for eacjh line.
Through (0,5), perpendicular to 8x+5y=3