Question

Ayudenme Urgentemente doy 15 puntos

Resuelve las siguientes ecuaciones con x+ a =b

A) x + 5 =12
B) x - 8 = 4
C) x + 9 = 12
D) x - 2 = 15

Answer 1

A) X=7
b) X= 12
c) x=3
d) x= 17

Answer 2

A)
x +5 = 12
x = 12 -5
x = 7

B)
x -8 = 4
x = 4 +8
x = 12

C)
x +9 = 12
x = 12 -9
x = 3

D)
x -2 = 15
x = 15 +2
x = 17