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barxatty [35]
3 years ago
7

What is the value of x, given the following system of linear equations? x + y = 8 and x - y = 2

Mathematics
2 answers:
zaharov [31]3 years ago
5 0

Answer:

x = 5

Step-by-step explanation:

x + y = 8 \\ x - y = 2 \\ x + y + (x  - y) = 8 + 2 \\ x + y + x - y = 10 \\ 2x = 10 \\  \frac{2x}{2}  =  \frac{10}{2}  \\ x = 5 \\  \\ x + y = 8 \\ 5 + y = 8 \\ y =  8- 5 \\ y = 3 \\  \\ x - y = 2 \\ 5 - 3 = 2 \\ 2 = 2

Gala2k [10]3 years ago
3 0

Answer:

6

Step-by-step explanation

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