exam
Maths Puzzle
Numerical Ability
Study problems
Express as a single logarithm: 5 log, x+log, y-2log, z
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exam Other Question
x+3y+5z-4w=1
X+3y+z-2w+v=-1
x-2y+z-w-v=3
x-4y+z+w-v=3
x+2y+z-w+v=-1
30x^3 y^4
6x^9 y^-4