Question

cuanto da 9k=-8+k+5
7d=-8+2
con comprocion porfa doy 20 puntos

Answer 1

Solucion:

->9k = -8 + k + 5
9k - k = - 3
8k = -3
k = -3/8

Verifiacion:

9k = -8 + k + 5
9(-3/8) = -8 -3/8 + 5
-27/8 = -64/8 -3/8 + 40/8
-27/8 = (-64 -3 +40)/8
-27/8 = -27/8

->7d = -8 + 2
7d = -6
d = -6/7

Verificacion:

7d = -8 + 2
7(-6/7) = -6
-42/7 = -6
-6 = -6

Espero ayude

Answer 2

Respuesta:

Solucion:

->9k = -8 + k + 5

9k - k = - 3

8k = -3

k = -3/8

Verifiacion:

9k = -8 + k + 5

9(-3/8) = -8 -3/8 + 5

-27/8 = -64/8 -3/8 + 40/8

-27/8 = (-64 -3 +40)/8

-27/8 = -27/8

->7d = -8 + 2

7d = -6

d = -

7d = -8 + 2

7(-6/7) = -6

-42/7 = -6

-6 = -6

Explicación paso a paso: