exam Maths Puzzle Numerical Ability

Water freezes at 32 degrees Farenheit (or 0 degrees Celcius) and boils at 212 degrees Farhenheit (or 100 degrees Celcius). Write a linear equation that models the temperature in d

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exam Other Question
What is the sum of the solutions of the equation 3x^2+11x=4? Could someone draw the graph for the following problem?

I need to solve the system by graphing:

3x - y = 1
3x - y = 2

Thanks,
Lisa