alves1250 26/04/2022 A) x + 12 = 15 ---> x = 15-12 ---> x = 3B) x - 6 = 5 ---> x = 5 + 6 ---> x = 11C) 2x + 5 = 11 --> 2x = 11-5 --->2x = 6 ---> x = 3D) 3 . x = 15 --> x = 15/3 ---> x = 5E) x/2 - 7 = 12 ---> x/2 = 12+7 --> x/2 = 19 -->x=38
alves1250
A) x + 12 = 15 ---> x = 15-12 ---> x = 3
B) x - 6 = 5 ---> x = 5 + 6 ---> x = 11
C) 2x + 5 = 11 --> 2x = 11-5 --->2x = 6 ---> x = 3
D) 3 . x = 15 --> x = 15/3 ---> x = 5
E) x/2 - 7 = 12 ---> x/2 = 12+7 --> x/2 = 19 -->x=38