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Maths Puzzle
Numerical Ability
the question is X+y = 13 & 22x+36y=356 university of phoenix elementary and intermediate algebra
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i do not know how to solve
6e^-1.4x=21
How do I solve this: 3 over z = 9 over 5..............? (by "over" I mean 3 and 9 are numerators........z and 5 are denominators....
Solving for "z"...........Thank you