datsdaboat datsdaboat
  • 23-10-2019
  • Mathematics
contestada

Solve by Elimination:
11. 3x - 3y - 2 = 6 & 4x - 5y - 3 = 4​

Respuesta :

Аноним Аноним
  • 23-10-2019

Answer:

x = 6.33,   y =  3.67   to the nearest hundredth.

Step-by-step explanation:

 3x - 3y - 2 = 6

4x - 5y - 3 = 4​   Simplifying these 2 equations:

3x - 3y  = 8         (A)      Multiply by by 5        

4x - 5y  =  7         (B)      Multiply by by -3

15x - 15y = 40

-12x + 15y = -21   Adding:

3x    = 19

x =  19/3 = 6.33

so y =  (8 - 3 *6.33 ) / - 3  (from Equation B )

= 3.67.

Answer Link

Otras preguntas

What type of account is allowance for doubtful accounts.
What is the 2022 Lunar New Year Animal?
if a code block begins with the word "on" it will typically​
Solve the system of equations using the substitution method. Show all your steps. y = 15 + x 2x + 5y = 26
Hank spends 76% of his monthly salary and saves $270. Find his monthly salary?
What is the slope-intercept equation for this line?
А B 12 14 8 1 What is: n(An BC). Question Help: Message instructor
Which compound contains ionic bonds?
Enzymes speed up chemical reactions. Explain how amylase breaks down starch. (pls give detailed paragraph i will mark you as brainliest)
The sum of all chemical reactions that support life is called.