exam
Maths Puzzle
Numerical Ability
please help me solve these problems
3x+y=2
-x-3y=6
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exam Other Question
In 1994, the life expectancy of males in a certain country was 69.6 years. In 2001, it was 73.3 years.
Let E represent the life expectancy in year t and let t represent the num
y-15=-4