Question

Resolva as equações
A) 10 - 2 x = 3 x
B) x - 3 = 6 + 4 x
C) (7 x - 8) . 2 = 6. (3 x - 4)
D) 16x - 6 - 7 x = 15 + 2 x


ME AJUDEMMM
POR FAVOOOOR

Answer 1

Resposta:

A)10-2x= 3x

-2x-3x = -10

-5x= -10 ×(-1)

5x= 10

x= 2

B)x-3= 6+4x

x-4x= 6+3

-3x= 9 ×(-1)

3x= -9

x= -3

C)(7x-8)×2= 6 (3x-4)

14x-16= 18x- 24

14x-18x= -24+16

-4x= -8 ×(-1)

4x= 8

x= 2

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

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

7x= 21

x=3