villa1748jorge villa1748jorge
  • 01-05-2020
  • Mathematics
contestada

-3x-4y=-2 and y=2x-5. What is y? *

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devishri1977
devishri1977 devishri1977
  • 01-05-2020

Answer:

Step-by-step explanation:

-3x - 4y = - 2   ----------------(i)

y = 2x - 5 -------------(ii)

substitute the value of y in equation(i)

-3x - 4*(2x - 5) = -2

-3x -4*2x -(-4)*5 = -2

-3x - 8x + 20 = -2

-11x + 20 = -2

-11x = -2 -20

-11x = -22

x = -22/-11

x= 2

Plug in the value of x in equation (ii)

y = 2*2 - 5

y = 4 - 5

y= -1

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eddiegwisner eddiegwisner
  • 01-05-2020
The answer is definitely what the other guy said
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