dayaan009
30.11.2020 •
Mathematics
System of linear equations:
X+ Y= 2000
10x + 20y = 35000
Can someone explain in words how they would solve this?
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Ответ:
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
Ответ: