book Maths Puzzle Numerical Ability

7x-(6x-2)<-1

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Can you show me what the graph lookes like for the Inequality of x+y > 2? I alos need help on knowing what numbers to use in the t-chart to test the Inequality graph solve the equation 2 sec x-5= 0 for 0 less than or equal to x less than 2 pi. give answers to the nearest hundreth of a radian.