book
Maths Puzzle
Numerical Ability
2x-3y+5z=-5, 2y-3z=4, and 4z=-8
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book Other Question
Kathy can paddle her kayak 6 miles per hour in still water. It takes her as long to paddle 3 miles upstream as 4 miles downstream in the Wabash River. Determine the rivers current.
how do you do these types of equations?:
5-2(y+1)=21