davonte29 davonte29

30-11-2020
Mathematics

contestada

System of linear equations:
X+ Y= 2000
10x + 20y = 35000
Can someone explain in words how they would solve this?

Respuesta :

quynhdao123 quynhdao123

30-11-2020

Answer:

x= 500 y= 1500

Step-by-step explanation:

Isolate x or y in the first equation

Isolating for x would be x= -y+2000

Substitute X=-y+2000 into equation 10x+20y=35000

10(-y+2000)+20y=35000

Exapnd the equation above and you should get y=1500

Same steps for finding x by isloating for y

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