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Maths Puzzle
Numerical Ability
Subtract the complex numbers and simplify: 3+2i/1+2i-1/1-2i= Help! Thank you.
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book Other Question
Proportions and Percent Equations
20% is 80% of what number please list steps such as 20x X 80?
.80 .80
-4(x-3)=6(x+5)