8x - 3y = 17
7x - 4y = 8
Ayuda porfis es para ahoritaaa
7x - 4y = 8
Ayuda porfis es para ahoritaaa
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Respuesta:
X= 4
Y=5
Explicación paso a paso:
8x - 3y = 17
7x - 4y = 8
8x - 3y = 17
-3y= 17-8x
y= 17-8x/-3
7x - 4y = 8
-4y=8 -7x
y= 8-7x/-4
17-8x/-3= 8-7x/-4
-4(17-8x) = -3( 8-7x)
-68+32x= -24 + 21x
+32x-21= -24 +68
11x= + 44
x= 44/11
x= 4
8x - 3y = 17
8(4)-3y= 17
32-3y=17
-3y = 17 -32
-3y = - 15
y= -15/-3
y= 5
Comprobación
8x - 3y = 17
8(4)-3(5)=17
32-15=17
17=17
7x - 4y = 8
7( 4)- 4(5)= 8
28-20= 8
8=8