Respuesta :

alasdiqali

Answer:

4.1

Step-by-step explanation:

X+ 7.8 = 11.9

X= 11.9 - 7.8

X= 4.1

altavistard

Answer:

x = 4.1

Step-by-step explanation:

To solve for x, subtract 7.8 from both sides of  x + 7.8 = 11.9:

x + 7.8 - 7.8 = 11.9 - 7.8, or

x = 4.1

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