Maths-
SAT
Easy

Question

2x+3y=31
3x-y=30
If (x , y) is the solution to the system of equations above, what is the value of 100x+40y?

The correct answer is: 1220


    2x + 3y = 31
                           3x – y = 30
    rightwards double arrow 20 (5x + 2y = 61)
    rightwards double arrow 100x + 40y = 1220

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