lilyjaneJ lilyjaneJ
  • 04-05-2020
  • Mathematics
contestada

Solve the system:
5y+8(x−3y)=7x−12
9x+3(x−9y)=11y+46

Respuesta :

Abrha Abrha
  • 06-05-2020

Answer:

5y+8(x-3y)=7x-12

5y+8x-24y=7x-12

8x-7x + 5y-24y= -12

X - 19y = - 12

9x+3(x-9y) =11y+46

9x+3x - 27y = 11y + 46

12x -27y - 11y = 46

12x - 38y = 46

Now joining together

X - 19y = - 12

12x - 38y = 46

Multiple by 12 the first equation and Substract after

12x - 228y = -144

12x - 38y = 46

- 190y = -98

Y = 1.9

12x - 38y = 46

12x - 38(1.9) = 46

12x - 73.67 = 46

12x = 46 + 73.67

12x = 119.67

X = 9.97

So the answer are :

X = 9.97

Y = 1.9

Step-by-step explanation:

Answer Link

Otras preguntas

_______ was called the “valkyrie of the piano.” a. fanny mendelssohn hensel c. robert schumann b. clara wieck schumann d. teresa carren
It takes Olivia 12.5 minutes to swim 20 laps around the pool what is Olivia unit rate
Why did the United States go to war against Britain instead of France?
which of the following statements is most accurate regarding the mayflower compact
I need the answer to help me
In one year there were approximately 3,849,378 written in expanded form. Which shows 3,849,378 in expanded form
Use the slope formula to determine the slope of the line that passes through the points R (1, 2) and S (5, 7)
Which of the following advances in food production were attributed to the Green Revolution of the 1960s and 1970s? A. use of crops for biofuels and bioplasti
Is it possible to cut a scalene triangle into two congruent triangles?
what is the only book that has been translated into more languages than shakespeare