Question

1) Determine o valor de x em cada equação
A) -4 x+ (-2 x+5)=3(x+2)
B) 2 (x-5)= -3 (x+6)
C) 4 x-8+x=-3 x+5 +x+1
D) 6 x-9=-2 x-25
E) 7 x-5=2 x-35
F) 6 x-9=-9
G) -4+2 x=-12
H) 6 x=-24
I) x-5=-8
J) -9+x=7

Answer 1

letra a) 1/9
letra) -8/5

Answer 2

Resposta:

a) -4x +(-2x +5)= 3(x +2)

-4x -2x +5= 3x +6

-4x -2x -3x= 6-5

-9x= 1

x= 1/-9

b) 2(x -5)= -3(x +6)

2x -10= -3x -18

2x +3x= -18 +10

5x= -8

x= -8/5

c) 4x -8 +x= -3x +5 +x +1

4x +x +3x -x= 5 +1 +8

7x= 14

x= 14/7

x= 2

d) 6x -9= -2x -25

6x+2x= -25 +9

8x= -16

x= -16/ 8

x= -2

e) 7x -5= 2x - 35

7x -2x= -35 +5

5x= -30

x= -30/ 5

x= -6

f) 6x -9= -9

6x= -9 +9

x= -0/ 6

x= 0

g) -4 +2x= -12

2x= -12 +4

2x= -8

x= -8/2

x= -4

h) 6x= -24

x= -24/ 6

x= -4

i) x -5= -8

x= -8 +5

x= -3

j) -9x +x= 7

x= 7 +9

x= 16

Explicação passo-a-passo: