DanielSanchez0500 DanielSanchez0500
  • 16-04-2021
  • Mathematics
contestada

Solve the system of equations using the substitution method.

x - 2y = -2
-4x + 3y = -5

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Lamrnently
Lamrnently Lamrnently
  • 16-04-2021
So do we solve both of them, or just one of them I’m confused.
Answer Link
jvitasoy
jvitasoy jvitasoy
  • 20-04-2021

Answer:

x=16/5, y=13/5

Step-by-step explanation:

  1. Multiply by 4 on the first equation and get a new equation: 4x-8y=-8
  2. Plus the new and second equation: 4x-8y+(-4x+3y)=-8+(-5), and got -5y=-13, so y=13/5
  3. After getting y=13/5, substitute in the first equation, x-2*(13/5)=-5, and got x=16/5
Answer Link

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