exam Maths Puzzle Numerical Ability

i would like to know how to sovle a equation 3y-2(y-1)/=-1 can u show me the processes to get the correct answer.

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I need a hand on this one please

Given f(x)=-2(x+4)^2+5, find the vertex, domain,range and axis of symmetry.

Thank you for your time Find the slope of the line passing through the points (10, -8) and (-4, 9).