exam Maths Puzzle Numerical Ability

P(4,-4)

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Whats wrong with this?

|m+3| = 12-2m
m+3=12-2m
3=12+2m
3=12-12+2m
3/2=2m/2
m=1.5 or -5



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I need help with this one.

1/2|6-2x|=3x + 1 if two number cubes are rolled 100 times

An even number appeared on at least one cube 76 times