exam Maths Puzzle Numerical Ability

???????? i have no idea how to do any of this!! -2=x-4/2x

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exam Other Question

Insert grouping symbols (parenthesis) so that the expression evaluates to the given number:

24/3*2+2*5; evaluate to 15
Write the equation of the line below in slope-intercept form and standard form:

Is parallel to y=x+2 and passes through the point (1,-4)