exam Maths Puzzle Numerical Ability

SOLVE BY SUBSTITUTION METHOD AND DETERMINE WHETHER ITS A INDEPENDENT, DEPENDENT, OR INCONSISTENT

x=2y-7
3x+2y=-5

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exam Other Question

The distance from the ground level to the underside of a cloud is called the ceiling. A ground observer 950 m from a searchlight aimed vertically notes that the angle of elevation I did not see anything on rational expressions. can you assist me is solving this problem?

-2x-8 / x(square)+ 2x-8