ANSWERS: 1
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Coefficients are the numbers before a variable (such as X or Y or whatever). So 5, -7, 3. When you're evaluating for numbers, you're going to "plug" those numbers into the formula. Wherever you see X, plug in -2, and wherever you see Y, plug in 3. 5x-4Y 5(-2)-4(3) -10-12 =-22
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