2smiyz5x62
2smiyz5x62
28-10-2020
Mathematics
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3x + 4y = –23
X=3y+1
Respuesta :
farihamushtaq2006
farihamushtaq2006
28-10-2020
3x+4y=−23.........(1)
x=3y+1 .........(2)
Putting (2) in (1)
3(3y + 1) + 4y = -23
9y + 3 + 4y = -23
9y + 4y = -23 - 3
13y = -26
y = -26/13
y = -2
Putting y into (2)
x=3y+1
x = 3(-2) + 1
x = -6 + 1
x = -5
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