exam
Maths Puzzle
Numerical Ability
Could you please help me with this problem?
1/(x^2-2x-3)+2/(x^2+2x+1) Thank you!!!
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exam Other Question
3y+6>0
Could you please help me solve the system of equations?
3x+3y+z=5
x-3y+2z=-13
8x-2y+3z=-8