ricardoharris89 ricardoharris89
  • 21-01-2022
  • Mathematics
contestada

8. Solve the system of

equations using substitution.

y= -1/4x

× +2y=4

Respuesta :

BaldwinChen
BaldwinChen BaldwinChen
  • 22-01-2022

Answer:

(4.5 , -1.125)

Step-by-step explanation:

y= -1/4x

× +2y=4

step 1. substitute y = -1/4x into the second equation.

Rearranging × + 2y = 4 we get  x = 4 - 2y

now substitute

x = 4 + 2(1/4)

x = 4 + 0.5

x = 4.5

step 2. plug in the value of x into the first equation and solve for y.

y= -1/4x

y= -1/4(4.5)

y = -1.125

tadah!

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