Question

A, x+5=8
B, x-4=3
C, x+6=5
D, x-7= -7
E, x +9=1
F,x-39=79
G,10=x+8
H,3x-13=8​

Answer 1

Resposta:

A)3    B)7    C)-1   D)0   E)-8   F)118   G)2   H)7

Explicação passo a passo:

A) x+5=8

x = 8-5

x = 3

B) x-4=3

x = 3+4

x = 7

C) x+6=5

x = 5-6

x= -1

D) x-7= -7

x = -7+7

x=0

E) x +9=1

x = 1-9

x = -8

F) x-39=79

x= 79+39

x=118

G) 10=x+8

x = 10-8

x=2

H) 3x-13=8​

3x = 8+13

x = 21

     3

x = 7