exam Maths Puzzle Numerical Ability

please help me with this problem.

1) 5=|2x/7 + 4/7| -3

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exam Other Question

Solve. x^2 - 10x + 16 = 0 A line is passing through the points (-1,1) adn (-2,-1).
What is the lope and what is the equation of the line and what are the x and y intercepts?