Question

Resolva as seguintes equações:
a) x-109=5
b) x/3=7
c) 17x-7x=x+18
d) 7(x-4) =2x-3​

Answer 1

Resposta:

a) x- 109= 5

x=5+109

x=114

b) x/3=7

1 × =7

3

x=21

c)17x-7x=x+18

10x= x +18

10x - x =18

9x=18

x= 2

d) 7(x‐4) =2x-3

7x-28=2x - 3

7x-2x= - 3 +28

5x= 25

x= 5