Question

x – 6 = 15
−4a – 3 = 2a – 15
−5x + 7 = 6x – 4
16 (4x – 6) – 14 = 18
ayudaaa

Answer 1

Respuesta:

#1

x - 6 = 15

x = 15 + 6

x = 21

#2

- 4a - 3 = 2a - 15

- 4a - 2a = - 15 + 3

- 6a = - 12

a = -12 / -6

a = + 2

#3

- 5x + 7 = 6x - 4

- 5x - 6x = - 4 - 7

- 11x = - 11

x = -11 / -11

x = + 1

#4

16 (4x - 6) - 14 = 18

64x - 96 - 14 = 18

64x = 18 + 96 + 14

64x = 128

x = 128 / 64

x = 2