dakiaddaidai dakiaddaidai
  • 12-01-2020
  • Mathematics
contestada

What is the solution to this system of equations? Negative 3 x + 5 y = negative 2. 3 x + 7 y = 26. NEED FAST TAKING UNIT TEST 40 points

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darkspeed
darkspeed darkspeed
  • 12-01-2020

3x + 5y = -2

3x + 7y = 26

Subtract first equation from second

2y = 28

y = 14

Plug it in

x = -24

Answer Link
ghanami
ghanami ghanami
  • 12-01-2020

Answer:

Step-by-step explanation:

-3 x + 5 y = - 2  ...(1)

3 x + 7 y = 26....(2)

(1)+(2) : 12y =24

y=24/12=2

put this value in (1) or (2) : 3x +7(2) = 26

3x=26-14

3x = 12

x=12/3=4

Answer Link

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