Question

resolva as equações : com as contas por favor
A)x+28=11
b)x-109=5
c)x-39=-79
d)10=x+8
e)15=x+20
f)4=x-10
g)7=x+8
H)0=x+ 12
i)-3=x+10

Answer 1

A) x +28 = 11
x = -28 + 11
x = 17

B) x -109 = 5
x = +109 + 5
x = 114

C) x- 39 = -79 
x = +39 - 79
x = 40

D)10 = x +8 
10 -8 = x
2 = x

E) 15 = x +20
15 -20 = x
5 = x

F)4 = x -10 
4 +10 = x
14 = x

G)7 = x +8 
7 -8 = x
-1 = x

H)0 = x +12  
0 -12 = x
-12 = x

i) -3 = x +10 
-3 -10 = x
-13 = x