Question

EQUAÇÃO DO 1º GRAU
A)-(3x-2)+(4x-8)
B)7x+2-(3x-2+x)
C)7x+(3x-4)+5
D)6x-(3x-2)+(3x+2)
E)-(3x-2)-(9x-1)
F)7x+2-(3x-2+x)
G)-9x-3-(3x-2x+5)
H)-6x-1-(3x-2)+3
I)2x+5+(3x-2)+1

Answer 1

Resposta:

a)-(3x-2)+(4x-8) = 0

-3x+2+4x-8 = 0

x-6 = 0

x = 6

b)7x+2-(3x-2+x) = 0

7x+2-3x+2-x = 0

3x+4 = 0

x = -4/3

c)7x+(3x-4)+5 = 0

7x+3x-4+5 = 0

10x+1 = 0

10x = -1

x = -1/10

d)6x-(3x-2)+(3x+2) = 0

6x-3x+2+3x+2 = 0

6x+4 = 0

6x = -4

x = -4/6

e)-(3x-2)-(9x-1) = 0

-3x+2-9x+1 = 0

-12x+3 = 0

-12x = -3

x = -3/-12x

x = 3/12

f)7x+2-(3x-2+x) = 0

7x+2-3x+2-x = 0

3x+4 = 0

3x = -4

x = -4/3

g)-9x-3-(3x-2x+5) = 0

-9x-3-3x+2x-5 = 0

-10x-8 = 0

-10x = 8

x = 8/-10

x = -8/10

h)-6x-1-(3x-2)+3 = 0

-6x-1-3x+2+3 = 0

-9x+4 = 0

-9x = -4

x = -4/-9

x = 4/9

i)2x+5+(3x-2)+1 = 0

2x+5+3x-2+1 = 0

5x+4 = 0

5x = -4

x = -4/5