MatemáticasBásico1 respuestas

Resolver cada ecuacion y verifica la soluciona)?

Resolver cada ecuacion y verifica la solucion a). 5x + 20 = 65 b). 8z - 14 + 3z = 19 c). M + 3 / 5 = 11 d). 1 / 4n - 5 / 8 = - 1 / 24.

En resumen

A. 5x + 20 = 65 5x = 65 - 20 5x = 45 X = 45 / 5 X = 9 Comprobacion 5. 9 + 20 = 65 45 + 20 = 65 65 = 65 B. 8z - 14 + 3z = 19 8z + 3z = 19 + 14 11z = 33 Z = 33 / 11 Z = 3 Comprobacion 8. (3) - 14 + 3(3) = 19 24 - 14 + 9 = 19 10 + 9 = 19 19 = 19 C.

Mejor respuesta

Katiuska4756
4

A. 5x + 20 = 65

5x = 65 - 20

5x = 45

X = 45 / 5

X = 9

Comprobacion

5.

9 + 20 = 65

45 + 20 = 65

65 = 65

B.

8z - 14 + 3z = 19

8z + 3z = 19 + 14

11z = 33

Z = 33 / 11

Z = 3

Comprobacion

8.

(3) - 14 + 3(3) = 19

24 - 14 + 9 = 19

10 + 9 = 19

19 = 19

C.

M + 3 / 5 = 11

M = 11 - 3 / 5

M = 52 / 5

Comprobacion

52 / 5 + 3 / 5 = 11

55 / 5 = 11

11 = 11

D.

1 / 4n - 5 / 8 = - 1 / 24

1 / 4n = - 1 / 24 + 5 / 8

1 / 4n = ( - 1 + 15) = 24

1 / 4n = 14 / 24

1 / 4n = 7 / 12

N = 7 / 12 : 1 / 4

N = 28 / 12

N = 14 / 6

N = 7 / 3

Comprobacion

1 / 4.

7 / 3 - 5 / 8 = - 1 / 24

7 / 12 - 5 / 8 = - 1 / 24

(14 - 15) / 24 = - 1 / 24 - 1 / 24 = - 1 / 24

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