-10y + 9x = -9
10y + 5x = -5
solución
-10y+9x=-9
-10y+9x-9x=-9-9x
-10y/-10 = -(9/-10) - (9x / -10) = -10y / -10 = y
= 10y / 10 = Y
= -(9/-10) - (9x / -10) = - (-9-9x / 10)
Y = - (-9-9x / 10)
sustituyendo Y = - (-9-9x / 10)
[ 10 ( - (-9-9x / 10) ) + 5x = -5 ]
-10 * 9-9x / 10 + 5x= -5
10 * -9 -9x / 10 = -9 - 9x
- ( -9 -9x ) + 5x = -5
- ( -9 -9x ) + 5x : 9 + 14x
9 + 14x= -5
9 + 14x -9= -5 -9
14x = -14
14x/14 = -14 / 14 = x= -1
para y = -9 -9x / 10
sustituyendo x = -1
y = - (( -9 -9 ( -1 ))/ 10 = 0
y = 0
esto quiere decir que para el sistema de ecuación son x = -1 ; y = 0
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-10y + 9x = -9
10y + 5x = -5
solución
-10y+9x=-9
-10y+9x-9x=-9-9x
-10y/-10 = -(9/-10) - (9x / -10) = -10y / -10 = y
= 10y / 10 = Y
= -(9/-10) - (9x / -10) = - (-9-9x / 10)
Y = - (-9-9x / 10)
sustituyendo Y = - (-9-9x / 10)
[ 10 ( - (-9-9x / 10) ) + 5x = -5 ]
-10 * 9-9x / 10 + 5x= -5
10 * -9 -9x / 10 = -9 - 9x
- ( -9 -9x ) + 5x = -5
- ( -9 -9x ) + 5x : 9 + 14x
9 + 14x= -5
9 + 14x -9= -5 -9
14x = -14
14x/14 = -14 / 14 = x= -1
para y = -9 -9x / 10
sustituyendo x = -1
y = - (( -9 -9 ( -1 ))/ 10 = 0
y = 0
esto quiere decir que para el sistema de ecuación son x = -1 ; y = 0