exam Maths Puzzle Numerical Ability

can you help me PLEASE: Solve the inequalitie: 12x+31+6>0

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exam Other Question

Solve x^2=-6x
A) 0,6
B)6,-6
c)2,6
D)0,-6 The number of bacteria in a large sealed jar doubles every minute. An hour after the first bacteria was put into the jar and sealed in, the jar was full. When was it half full?