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Maths Puzzle
Numerical Ability
7+3c=-11
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book Other Question
Solve and Graph the following:
4x+2y=8
4x+2y<8
4x+2y>8
If y varies directly as x and inversely as z squared, and y = 3 when x = 2 and z = 4 what is the value of x when y = 9 and z = 4.