miaowla miaowla
  • 04-03-2019
  • Mathematics
contestada

8X +6Y+4
Y=-3X+9
using substitution what numbers are the variables X and Y

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 04-03-2019

Answer:

(5,6)

Step-by-step explanation:

8X +6Y=4

Y=-3X+9

Substitute the second equation into the first.  Every place you see y put -3x+9)

8x +6(-3x+9)=4

Distribute

8x-18x +54 = 4

Combine like terms

-10x +54 = 5

Subtract 54 from each side

-10x +54-54=4-54

-10x = -50

Divide by -10

-10x/-10 = -50/-10

x= 5

Now we need to find y

y = -3x+9

y = -3(5) +9

y = -15+9

y= 6

(5,6)

Answer Link

Otras preguntas

A budget is a _____. net worth statement plan for saving and spending your money table that lists your goals for saving and investing list of what you spent las
GLOBAL ECONOMICS!!Which does seed capital pay for? A) Expanding production and advertising budgets B) Operating expenses for the first year of a new business C
what BEST describes Machu Picchu?
How did data gathered using Galileo's early telescope support the heliocentric model
what were the general beliefs of literary realists
A student wants to design an experiment to test the hypothesis "temperature affects the reproductive rate of bacteria." What should the independent variable be?
How did Hitler acquire a mass appeal with the German people
How does the music of the classical period differ from the music of the baroque period?
What do base pairing rules have to do with replication?
partially damaged reluctant or unwilling overly sentimental Pairs That leaves a heart high-sorrowful and cloy'd, (excerpt from “Ode on a Grecian Urn” by John