mmboisseau mmboisseau

26-04-2021
Mathematics

contestada

value of x if 3x+2y=11 and 5x-y=14

Respuesta :

akilali3845 akilali3845

26-04-2021

Answer:

3x + 2y = 11

3x + y = 11 - 2

3x + y = 9

x + y = 9/3

x + y = 3

x = 3 - y

5x - y = 14

x - y = 14/5

x - y = 2.8

x = 2.8 + y

Answer Link

drmallery drmallery

26-04-2021

14Answer:

3

Step-by-step explanation:

solve for y in first equation

5x-y=14

-y=14-5x

y=5x-14

substitute y value (5x-14) into 2nd equation

3x+2 (5x-14)=11

3x+10x-28=11

13x=39

x=3

Answer Link

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