Question

Resolva as equações

A) 10-2x = 3×

B) x-3=6+4x

C) (7x-8)* 2=6*(3x-4)

D)16x-6-7x=15+2x

Answer 1

A) 10-2x = 3×

- 2x - 3x = - 10

- 5x = - 10

x= - 10/-5

x= 2

B) x-3=6+4x

x - 4x = 6 + 3

- 3x= 9

x= 9/-3

x= - 3

C) (7x-8)* 2=6*(3x-4)

14x - 16 = 18x - 24

14x - 18x = - 24 + 16

- 4x= 8

x= 8/-4

x= - 2

D)16x-6-7x=15+2x

9x - 6 = 15 + 2x

9x - 2x = 15 + 6

7x= 21

x= 21/7

x= 3