exam Maths Puzzle Numerical Ability

Can you help me solve this please:Find each sum or difference in simplest form. m/[2(m - n)] - 5/m

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exam Other Question

Can someone help me.

I need to solve the system by addition or substitution:


3x - 4y = 8
6x - 2y = 10

Thanks,
Lisa
Graph y=-2/3x