lexipoole
lexipoole
02-04-2015
Mathematics
contestada
Y=2x-5
3x+8y+32=56
What does y and x equal?
Respuesta :
Panoyin
Panoyin
03-04-2015
y = 2x - 5
3x + 8y + 32 = 56
3x + 8(2x - 5) + 32 = 56
3x + 8(2x) - 8(5) + 32 = 56
3x + 16x - 40 + 32 = 56
19x - 8 = 56
+ 8 + 8
19x
=
64
19 19
x = 3.4
y = 2(3.4) - 5
y = 6.8 - 5
y = 1.8
(x, y) = (3.4, 1.8)
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4x + y for x = 2.8 and y = 5
