exam Maths Puzzle Numerical Ability

how do i perform the indication operation of (-11),(-4)

will the answer be 44?

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exam Other Question

Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(20) (-1,3) and (4, -2)

(24) (2, -3) and (2,4)
Find three consecutive odd integers such that the sum of the first, twice the second, and three times the third is 70