Question

Si: a+1/2 = b+2/3; además, a + b +3=20
Halla el valor de "a"​

Answer 1

Respuesta:

Buen día. Suerte.

Explicación paso a paso:

a + 1/2 = b + 2/3

a - b = 2/3 - 1/2

a - b = (2(2) - 1(3))/6

a - b = (4 - 3)/6

a - b = 1/6 ... (1)

a + b + 3 = 20

a + b = 20 - 3

a + b = 17 ... (2)

Sumamos (1) y (2):

a + b = 17

a - b = 1/6

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2a = 17 + 1/6

2a = (17(6) - 1)/6

2a = (102 - 1)/6

2a = 101/6

a = 101/12 = 8.41666...