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FromTheMoon [43]
3 years ago
10

Mary is caring for 25 animals while her neighbors are on vacation. The number of cows is 3 greater than the number of pigs. How

many pigs is she taking care of?
Mathematics
1 answer:
VashaNatasha [74]3 years ago
3 0
To solve, you make a systems of equation:
x+(x+3)=25, the x representing the number of pigs. Since there is no multiplication and following the order of operations, you add the x’s to get 2x+3=25. Then, you subtract 3 from both sides to get 2x=22, then divide by 2 on both sides to isolate the variable. Therefore, x=11 and Mary is taking care of 11 pigs.
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Do you know what the answer is to this question
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Use subsiution]
y=-3x+5
subsitute -3x+5 for y in second equation
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distribute
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