exam Maths Puzzle Numerical Ability

how do you do albrega in expressions and simplying

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Construct a Venn Diagram representing the data for the objects with properties A, B, C. Enter the correct number of elements in each region of the diagram. Determine the total numb
Refrigerator A costs $600 and costs $35 a year to operate.
Refrigerator B costs $800 and costs $40 a year to operate.
how many years are the total costs of the 2 regrigerators the same?