Question

porfa resolver doy corona​

Answer 1

a)

2x - 10 = 72

2x = 72 + 10

2x = 82

x = 82/2

x = 41

Comprobación

2(41) - 10 = 72

82 - 10 = 72

b)

3x + 4 = 16

3x = 16 - 4

3x = 12

x = 12/3

x = 4

Comprobación

3(4) + 4 = 16

12 + 4 = 16

c)

2x + 12 = 30

2x = 30 - 12

2x = 18

x = 18/2

x = 9

Comprobación

2(9) + 12 = 30

18 + 12 = 30

d)

x/3 - 18 = 48

x/3 = 48 + 18

x/3 = 66

x = 66 × 3

x = 198

Comprobación

x/3 - 18 = 48

198/3 - 18 = 48

66 - 18 = 48

Espero haberte ayudado. Suerte en los estudios ≧◠◡◠≦.