Question

Resolva as equações a seguir, sendo U = Q
A)5× - 27= -4x
B) 9× + 5= 4x
C) 60 + 13 × =3x
D)4× - 12 =x
E) 5× + 21 = 10x - 19
F) 11x + 17 = 10x + 13
G) 3 + 1,6x = 0,1x​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 5x-27 = -4x

5x+ 4x= 27

9x = 27

x= 27/9

x= 3

b) 9x+5 = 4x

9x- 4x= -5

5x= -5

x= -5/5

x= -1

c) 60+13x = 3x

13x-3x = -60

10x= -60

x= -60 /10

x= -6

d) 4x-12=x

4x-x=12

3x= 12

x= 12/3

x= 4

e) 5x+ 21= 10x-19

5x-10x= -19-21

-5x= -40

x= -40 /-5

x= 8

f) 11x +17 = 10x+13

11x-10x= 13-17

x= -4

g) 3+1,6x = 0,1 x

1,6x-0,1 x= -3

1,5 x= -3

x= -3/1,5

x= -2