Respuesta :

Answer:

-63

Step-by-step explanation:

Add 7 to both sides

X/-3 -7 =14

+7 +7

‐-------------------

X/-3= 21. ( multiply both sides by -3 to isolate x)

X/-3 × 3= 21 ×-3

X= -63

Answer:

-140

Step-by-step explanation:

x/-3-7 = 14

Cross multiply

x = 14(-3 -7)

   = -42 -98

   = -140

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