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Sedbober [7]
3 years ago
5

Solve the system of equations using subtraction 4x-3y=-1 4x+y=11

Mathematics
1 answer:
Tamiku [17]3 years ago
3 0

Step-by-step explanation:

4x-3y=-1

4x+y=11

4x =  - 1 + 3y \\ x =  \frac{ - 1 + 3y}{4}

- 1 + 3y = 11 - y \\ 3y + y = 11 + 1 \\ 4y = 12 \\ y = 3

x =  \frac{ - 1 + 3  \times 3}{4}  \\ x =  \frac{ - 1 + 9}{4}  \\ x =  \frac{8}{4}  = 2

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