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vova2212 [387]
3 years ago
15

How many orders pair solutions does the system of equations have? -4+3y=12 x+y=2

Mathematics
1 answer:
Wewaii [24]3 years ago
3 0

Answer:

B. 1

- 4x + 3y = 12 -  -  - (a) \\ x + y = 2 -  -  - (b) \\  (a) - 3 \times (b) :  \\  - 7x + 0y = 6 \\  { \boxed{x =   - \frac{6}{7} }} \\  -  \frac{6}{7}  + y = 2 \\ { \boxed{y =  \frac{20}{7} }}

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