exam Maths Puzzle Numerical Ability

The difference when 7 less than a number is subtracted from twice the number is 12. What is the number

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exam Other Question

1)Graph the function g(x)= (x-1)3

2)f(x)= x2-2 my answer is f(x)=2x-8 /f(3)=2(3)-8 / 3=8-8/ 3=0

3)Draw the graph of the following linear function and give the domain and ra Find the slope of the line passing through the points (8, 2) and (10, -2)