exam Maths Puzzle Numerical Ability

y * 3 = 7/5

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Lane invested $14000 part at 15% and part at 2%. If the total interest at the end of the year is $1060 how much did she invest at 15%. My dear friends, if anyone can help I would be so grateful. write the equation and graph using:
slope: -2 y int: (0,4)