aminahp
aminahp aminahp
  • 13-01-2020
  • Mathematics
contestada

Solve the following system of equations:
5x + y = 9
3x + 2y = 4
(-2,5)
(1,4)
(2, -1)
(4,4)

Respuesta :

agusttas
agusttas agusttas
  • 13-01-2020
I hope this helps. I used the substitution method
Ver imagen agusttas
Answer Link
ohiekulous
ohiekulous ohiekulous
  • 13-01-2020

Answer:

(2, -1)

Step-by-step explanation:

5x + y = 9...........1

3x + 2y = 4.........2

from 1 y = 9 - 5x..........3

put eqn 3 in 2

3x + 2( 9 - 5x) = 4

3x + 18 - 10x =4

-7x = 4 - 18

-7x = -14

x = 14/7

x =2

put the value of x in equation 3

y = 9 - 5(2) = 9 -10 = -1

x = 2 and y = -1

Answer Link

Otras preguntas

(Opinion) What do you think this picture means to you
I’ll mark u as brainliest if you can answer help me with this question
solve the right angle trig problem. round to the nearest tenth.
Write the sum and the expression in standard form. The opposite of 4 and 3+ 4
Please help!!! thank you!!! *will give brainliest*
Which of the following statements is true? Select one: a. Those who ascribe to a philosophy of naturalism readily embrace the possibility of miracles. b. Chris
petulantly means : A. languidlyB.imperiouslyC.irritablyD.erroneously​
Can triangles be made with sides length of 15,10,4
A group of seven golfers paid $345 to play a round of golf. Of the golfers, one is a member of the club and six are nonmembers. Another group of golfers consist
A 14-foot ladder is being used to get to the top of a 12-foot-tall wall. At what angle of elevation must the ladder be positioned in order to reach the top of t