Question

grado 7 ecuaciones fraccionarios tabla verdadero o falso

Answer 1

Explicación paso a paso:

x + 2/6 = 1/2 /×6

6x + 2 = 3

6x = 3–2

x = 1/6. falso.

6a/4+ 2/10 = 4 /×20

30a + 4 = 80

30a = 76

a = 76/30 = 38/15. verdadero.

d/3 – 2/10 = 2/3

d/3 – 1/5 = 2/3

d/3 = 2/3 + 1/5

d/3 = 13 / 15

d = 13×3 / 15 = 39/15 = 13 /5

d = 13/5 falso.

y – 1/4 = 17/20. /×20

20y – 5 = 17

20y = 22

y = 22/20= 11/10 verdadero