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Keith_Richards [23]
2 years ago
13

Which method is the best way to solve the system shown below? 3x + 4y = 12 3x - 4y = 5

Mathematics
1 answer:
densk [106]2 years ago
3 0

Answer:

3x + 4y = 12 \\ 3x - 4y = 5 \\ 6x = 17 \\ x =  \frac{17}{6}  \\ 3 \times   \frac{17}{5}  - 4y = 5  \\ 51 \div 5 - 4y = 5 \\  \\ 10.2 - 5 = 4y \\ y =  \frac{5.2}{4}

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