exam Maths Puzzle Numerical Ability

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3[2x-3(4-x)]=2(1-2x)

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exam Other Question

x2-3x-4=0 One day the temperature at 8:00 am was 41F and by 1:00Pm the temperature was 61F. What was the hourly rate of temperature change?

Please help me do this I have no idea.

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