exam
Maths Puzzle
Numerical Ability
Use Cramer Rule.
x-3y+z=-2
x+2y=8
2x-y=1
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exam Other Question
How would you write the answer to this problem in lowest terms?
y/y^2+y-20-4/y^2+y-20
Help would be much appreciated.
y=x+10
y=x+2