Question

Alguem me ajuda nesses exercícios,pfv

a) 5x -3 + x =2x + 9
b)17x - 7x =x + 18
c)x + x - 4 = 17 - 2x + 1
d)x + 2x + 3 - 5 x =4 x - 9
e)5x + 6x - 16 =3x + 2x - 4
f)5x + 4 = 3x - 2x + 4​

Answer 1

a) 5x-3+x= 2x+9

5x+x-2x= 9+3

4x= 12

x= 12/ 4

x= 3

b) 17x-7x= x+18

17x-7x+x= 18

11x= 18

x= 18/ 11

C) x+x-4= 17- 2x+1

x+x+2x= 17+1+4

4x= 22

x= 22/ 4

D) x+2x+3-5x= 4x-9

x+2x-5x-4x= -9-3

-6x= -12

x= -12/ -6

x= 2

E) 5x+6x-16= 3x+2x-4

5x+6x-3x+2x= -4+16

10x= 12

x= 12/ 10

F) 5x+4= 3x-2x+4

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

4x= 0/4

x= 0