jessijane88 jessijane88
  • 02-02-2018
  • Mathematics
contestada

solve and verify each of the following systems of linear equations 4y=3x+7 and 9x+4y-139=0

Respuesta :

Аноним Аноним
  • 02-02-2018
rearranging the first equation:-

3x  - 4y = -7 
9x + 4y = 139

12x = 132
x = 132/12 = 11
Substituting fro x in the second equation:-
9(11) + 4y = 139
4y = 139 - 99 = 40
y = 40/4 = 10

Answer x = 4 , y = 10.




Answer Link

Otras preguntas

Write 0.65% as a fraction in simplest form.
My boss is pregnant is it ok to knit him and his husband a baby sweater?
The measure of an angle is 34.6°. What is the measure of its complementary angle?
what is the meaning of a hybrid seed
Omar has $660 to spend at a bicycle store for some new gear and biking outfits. Assume all prices listed include tax. He buys a new bicycle for $330.64. He buys
Which of the following statements best describes the formation of volcanoes?
Study the equations: f(x)=11x-5 g(x)=-2x-4 What is h(x) = f(x) g(x)
yes haha yes what no oh yeah no nevermind wait yes
im sad and depressed because i just got called to the library to get told i didnt mke the team for the battle of the books
Subtract the following complex numbers: (11-7)-(16-11) A. 5+ 4i OB. 5-18i O C. -5-18i OD. -5+4i