Question

Me ajudem a resolver essas equações:

A) 3x=10

B) 3x=-12

C) 2 - 2 x + 1 = 4x + 14

D) 7x + 20 = 6x + 2

E) 16 x = 8x - 2

F) 8 x + 5 =6x+6-1

G) 4 x -2 - 6 + 12 x=8x-10

H) 4 x -8 = 4 + 2x - 2


I) 2 x + 3x - 6 = 7x + 34

J) 3x + 12 + 1 = 4x + 14

Answer 1

A) 3x=10
x=10/3

B) 3x=-12
x= -12/3

C) 2-2x+1=4x+14
4x+2x=2-14
6x=-12
x=-2

D) 7x+20=6x+2
7x-6x=2-20
x=-18

E)16x=8x-2
16x-8x=-2
2x=-2
x=-1