Respuesta :

Answer:

-15/2

Step-by-step explanation:

5(x + 8) - 2x = 7(x + 10)

=> 5x + 40 - 2x = 7x + 70

=> 3x + 40 = 7x + 70

=> 3x - 7x = 30

=> -4x = 30

=> x = -30/4

=> x = -15/2

Answer : 3x+40=7x+70
Explanation : 5(x) + 5(8) = 5x+40, 5x+40-2x= 3x+40 , 7(x)+7(10)=7x+70
3x+40=7x+70
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