monsterhigh1158
monsterhigh1158 monsterhigh1158
  • 26-04-2020
  • Mathematics
contestada


Solve, using the substitution method.
2x + 3y = 1
y = x - 8
?????????? Help

Respuesta :

Suzzal
Suzzal Suzzal
  • 26-04-2020

Answer:

Sure

Step-by-step explanation:

Here,

2x+3y = 1

or, y = x-8

Now,

x 9 10 11

x 9 10 11 y 1 2 3

Answer Link
choccocakee
choccocakee choccocakee
  • 26-04-2020
Substitute y=x-8 into the first equation

2x+3(x-8)=1

Expand

2x+3x-24=1

Collect like terms

5x-24=1

Move negative 24 to the other side as a positive number

5x= 25

Divide both sides by 5

25/5 is 5

Therefore x is equal to 5

Sub x equal five in second equation

y=5-8

5-8= -3

Therefore, y is equal to -3


Therefore, x is equal to 5 and y is equal to -3

Answer Link

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