Question

Resolva as seguintes equações do 1°grau
A) X-6=100
B) 4x=-28
C) 8z-14=28+z+5z
D) X+3=7
E) 2x-5=x+4

Answer 1

A)

x - 6= 100

x= 100 + 6

x= 106

B)

4x= - 28

x= -28/ 4

x= -7

C)

8z - 14= 28 + z + 5z

8z - z - 5z= 28 + 14

2z= 42

z= 42/ 2

z= 21

D)

x + 3= 7

x= 7 - 3

x= 4

E)

2x - 5= x + 4

2x - x= 4 + 5

1x= 9

x= 9/1

x= 9