Question

Halla el valor de la incógnita:
x – 3 = 11
20 = x + 12
3x = - 18


help me xDDDD

Answer 1

Explicación paso a paso:

x - 3 = 11

x = 11 + 3

x = 14

20 = x + 12

x = 20 - 12

x = 8

3x = - 18

x = - 18 / 3

x = - 6