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

Angela earns x dollars an hour. On Friday, she worked 6 hours. On Saturday, she worked 8 hours. Which expression shows how much she earned both days ? A. 6x +
In recent years, people have been motivated to move from rural areas to urban areas for __________.
Find the volume of a cylinder made by rotating a rectangle with a width of 5 feet and a length of 8. Round to the nearest whole number
With which of these positions would President Calvin Coolidge have agreed?
Does wind have atoms and molecules in it?
How do you tell if a caterpillar is a boy or girl?
Why can't our body resist radiation?
What is the equation for a quadratic equation?
find the sum to the equation of:
Sarah has going to work for 60 days. On 39 of those days she arrived at work before 8:30 AM. On the rest of the day she arrived after 8:30 AM. What is experimen