exam Maths Puzzle Numerical Ability

solve the inequality, with answer in interval notation

|2x-3| is less than or equal to 20

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exam Other Question

Please help Tutor,
A line has an x-intercept 0f (8,0) and a y-intercept of (0,-2). What is the slope of the line?

Thank you what is the formula of the inequlity i do not get how to do it