exam Maths Puzzle Numerical Ability

-6+x/4=-5 This is a fraction equation with negative. I am trying to help and have forgetten how to do these. Thank you so much for your help. Robin

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exam Other Question

adding like terms
simplify
4x^2y+3xxy-2xyy-10x^2-y^2x
Let y vary directly with x, with a constant of variation k=3. Graph the equation of varation.