Question

1) A solucao da equacao 2.(x-3)+ 4.(2x+1)= 8-5. ( x -4) é:

Answer 1

Aplicando a distributiva:
2x-6 + 8x+ 4 = 8 - 5x + 20
10x - 2 = -5x + 28
15 x = 30
x= 2
S= (2)

Answer 2

2.( x- 3 ) + 4.( 2x + 1 ) = 8 - 5. ( x - 4 )

2x - 6 + 8x + 4 = 8 - 5x  + 20

2x + 8x + 5x = 20 + 8 - 4 + 6

15x = 34 - 4

15x = 30

x = 30 / 15

x = 2

S = { 2 }