bbii29qt6g
bbii29qt6g bbii29qt6g
  • 22-10-2021
  • Mathematics
contestada

solve the system of equations by the substitution method .
y=5x+8
y=8x+9

Respuesta :

zechariahadegboye123
zechariahadegboye123 zechariahadegboye123
  • 22-10-2021

Answer:

rearrange the question

y - 5x = 8.................(1)

y - 8x = 9..................(2)

make y the subject formula in eqn. (1)

y = 8 + 5x................(3)

substitute

8 + 5x - 8x = 9

-3x = 1

x = -⅓

y = 8 + 5x

y = 8 + (-⅓)

y = 23/3

Answer Link

Otras preguntas

How do you do 81x^2=49
How do conservationists make use of watersheds and ecozones? Why is this important?
A test tube containing CaCO₃ is heated until the entire compound decomposes. If the test tube plus calcium carbonate originally weighed 30.08 grams and the loss
it's generally recommended that athletes consume approximately____ percent of their daily calories?
How are boundaries between river systems and natural vegetation regions different?
What is the difference between anus and ovary
Which sentence does not contain any punctuation errors? A. I thought of you when I read these words of Shakespeare; “The fool doth think he is wise, but the wi
Why are Europe's clean energy sources important to the region?
How many moles of sodium hydroxide are produced when 1.00 mol sodium peroxide reacts with water
10 lines on Good manners for class 1 student